diff --git a/spec/extensions/command-interpreter-spec.coffee b/spec/extensions/command-interpreter-spec.coffee
index 816bb5bd8..b4c7c1e46 100644
--- a/spec/extensions/command-interpreter-spec.coffee
+++ b/spec/extensions/command-interpreter-spec.coffee
@@ -1,4 +1,4 @@
-CommandInterpreter = require 'command-interpreter'
+CommandInterpreter = require 'command-panel/command-interpreter'
 Buffer = require 'buffer'
 EditSession = require 'edit-session'
 Editor = require 'editor'
diff --git a/spec/extensions/command-panel-spec.coffee b/spec/extensions/command-panel-spec.coffee
index 049c2d931..8edbd2f50 100644
--- a/spec/extensions/command-panel-spec.coffee
+++ b/spec/extensions/command-panel-spec.coffee
@@ -9,7 +9,7 @@ describe "CommandPanel", ->
     rootView.open(require.resolve 'fixtures/sample.js')
     rootView.enableKeymap()
     editor = rootView.getActiveEditor()
-    commandPanel = rootView.activateExtension(CommandPanel)
+    commandPanel = requireExtension('command-panel')
 
   afterEach ->
     rootView.remove()
diff --git a/spec/extensions/snippets-spec.coffee b/spec/extensions/snippets-spec.coffee
index cf91d57c3..2533b4675 100644
--- a/spec/extensions/snippets-spec.coffee
+++ b/spec/extensions/snippets-spec.coffee
@@ -9,7 +9,7 @@ describe "Snippets extension", ->
   [buffer, editor] = []
   beforeEach ->
     rootView = new RootView(require.resolve('fixtures/sample.js'))
-    rootView.activateExtension(Snippets)
+    requireExtension("snippets")
     editor = rootView.getActiveEditor()
     buffer = editor.getBuffer()
     rootView.simulateDomAttachment()
diff --git a/spec/extensions/tree-view-spec.coffee b/spec/extensions/tree-view-spec.coffee
index 6acdd2061..2dd302f6e 100644
--- a/spec/extensions/tree-view-spec.coffee
+++ b/spec/extensions/tree-view-spec.coffee
@@ -215,16 +215,11 @@ describe "TreeView", ->
       expect(treeView.find('.selected').length).toBe 1
 
     it "selected a file's parent dir if the file's entry is not visible", ->
-      # treeView.attachToDom()
       rootView.open(require.resolve('fixtures/dir/a-dir/oh-git'))
 
       dirView = treeView.root.find('.directory:contains(dir)').view()
       expect(dirView).toHaveClass 'selected'
 
-      # dirView.expand()
-      # aDirView = dirView.find('.directory:contains(a-dir)').view()
-      # expect(aDirView).toHaveClass 'selected'
-
   describe "when a different editor becomes active", ->
     it "selects the file in that is open in that editor", ->
       sampleJs.click()
@@ -493,15 +488,15 @@ describe "TreeView", ->
         describe "when the path with a trailing '/' is changed and confirmed", ->
           describe "when no file or directory exists at the given path", ->
             it "adds a directory and closes the dialog", ->
-              newPath = fs.join(dirPath, "new-dir")
-              addDialog.miniEditor.insertText("new-dir/")
+              newPath = fs.join(dirPath, "new/dir")
+              addDialog.miniEditor.insertText("new/dir/")
               addDialog.trigger 'tree-view:confirm'
               expect(fs.exists(newPath)).toBeTruthy()
               expect(fs.isDirectory(newPath)).toBeTruthy()
               expect(addDialog.parent()).not.toExist()
               expect(rootView.getActiveEditor().getBuffer().getPath()).not.toBe newPath
 
-          describe "when a or directory already exists at the given path", ->
+          describe "when a file or directory already exists at the given path", ->
             it "shows an error message and does not close the dialog", ->
               newPath = fs.join(dirPath, "new-dir")
               fs.makeDirectory(newPath)
@@ -592,7 +587,7 @@ describe "TreeView", ->
           describe "when the directories along the new path don't exist", ->
             it "creates the target directory before moving the file", ->
               runs ->
-                newPath = fs.join(rootDirPath, 'new-directory', 'renamed-test-file.txt')
+                newPath = fs.join(rootDirPath, 'new/directory', 'renamed-test-file.txt')
                 moveDialog.miniEditor.setText(newPath)
 
                 moveDialog.trigger 'tree-view:confirm'
diff --git a/spec/stdlib/fs-spec.coffee b/spec/stdlib/fs-spec.coffee
index ad7c29bd9..f5abc6c38 100644
--- a/spec/stdlib/fs-spec.coffee
+++ b/spec/stdlib/fs-spec.coffee
@@ -21,8 +21,9 @@ describe "fs", ->
 
     describe "when called with a directory path", ->
       it "return the path it was given", ->
-        expect(fs.directory(require.resolve('fixtures/dir'))).toBe require.resolve('fixtures')
-        expect(fs.directory(require.resolve('fixtures/dir/'))).toBe require.resolve('fixtures')
+        expect(fs.directory("/a/b/c")).toBe "/a/b"
+        expect(fs.directory("/a")).toBe ""
+        expect(fs.directory("a")).toBe ""
 
   describe ".exists(path)", ->
     it "returns true when path exsits", ->
@@ -32,7 +33,6 @@ describe "fs", ->
       expect(fs.exists(require.resolve("fixtures") + "/-nope-does-not-exist")).toBe false
       expect(fs.exists("")).toBe false
       expect(fs.exists(null)).toBe false
-      #expect(fs.exists(undefined)).toBe false
 
   describe ".join(paths...)", ->
     it "concatenates the given paths with the directory seperator", ->
@@ -41,6 +41,11 @@ describe "fs", ->
       expect(fs.join('/a/b/', 'c', 'd')).toBe '/a/b/c/d'
       expect(fs.join('a', 'b/c/', 'd/')).toBe 'a/b/c/d/'
 
+  describe ".split(path)", ->
+    it "returns path components", ->
+      expect(fs.split("/a/b/c.txt")).toEqual ["", "a", "b", "c.txt"]
+      expect(fs.split("a/b/c.txt")).toEqual ["a", "b", "c.txt"]
+
   describe ".extension(path)", ->
     it "returns the extension of a file", ->
       expect(fs.extension("a/b/corey.txt")).toBe '.txt'
@@ -49,6 +54,14 @@ describe "fs", ->
     it "returns an empty string for paths without an extension", ->
       expect(fs.extension("a/b.not-extension/a-dir")).toBe ''
 
+  describe "makeTree(path)", ->
+    beforeEach ->
+      fs.remove("/tmp/a") if fs.exists("/tmp/a")
+
+    it "creates all directories in path including any missing parent directories", ->
+      fs.makeTree("/tmp/a/b/c")
+      expect(fs.exists("/tmp/a/b/c")).toBeTruthy()
+
   describe ".traverseTree(path, fn)", ->
     fixturesDir = null
 
diff --git a/src/app/window.coffee b/src/app/window.coffee
index 8415e04fc..35382f5a0 100644
--- a/src/app/window.coffee
+++ b/src/app/window.coffee
@@ -55,6 +55,15 @@ windowAdditions =
     return if $("head style[path='#{fullPath}']").length
     $('head').append "<style path='#{fullPath}'>#{content}</style>"
 
+  requireExtension: (name) ->
+    extensionPath = require.resolve name
+    extension = rootView.activateExtension require(extensionPath)
+
+    extensionKeymapPath = fs.join(fs.directory(extensionPath), "keymap.coffee")
+    require extensionKeymapPath if fs.exists(extensionKeymapPath)
+
+    extension
+
   reload: ->
     if rootView.getModifiedBuffers().length > 0
       message = "There are unsaved buffers, reload anyway?"
diff --git a/src/extensions/autocomplete.coffee b/src/extensions/autocomplete/autocomplete.coffee
similarity index 100%
rename from src/extensions/autocomplete.coffee
rename to src/extensions/autocomplete/autocomplete.coffee
diff --git a/src/extensions/autocomplete/index.coffee b/src/extensions/autocomplete/index.coffee
new file mode 100644
index 000000000..6cf3142ba
--- /dev/null
+++ b/src/extensions/autocomplete/index.coffee
@@ -0,0 +1 @@
+module.exports = require 'autocomplete/autocomplete.coffee'
\ No newline at end of file
diff --git a/src/app/keymaps/autocomplete.coffee b/src/extensions/autocomplete/keymap.coffee
similarity index 100%
rename from src/app/keymaps/autocomplete.coffee
rename to src/extensions/autocomplete/keymap.coffee
diff --git a/src/extensions/command-interpreter.coffee b/src/extensions/command-panel/command-interpreter.coffee
similarity index 83%
rename from src/extensions/command-interpreter.coffee
rename to src/extensions/command-panel/command-interpreter.coffee
index 18dd8d114..0190a5e71 100644
--- a/src/extensions/command-interpreter.coffee
+++ b/src/extensions/command-panel/command-interpreter.coffee
@@ -4,7 +4,7 @@ PEG = require 'pegjs'
 module.exports =
 class CommandInterpreter
   constructor: ->
-    @parser = PEG.buildParser(fs.read(require.resolve 'command-interpreter/commands.pegjs'))
+    @parser = PEG.buildParser(fs.read(require.resolve 'command-panel/commands.pegjs'))
 
   eval: (editor, string) ->
     compositeCommand = @parser.parse(string)
diff --git a/src/extensions/command-panel.coffee b/src/extensions/command-panel/command-panel.coffee
similarity index 93%
rename from src/extensions/command-panel.coffee
rename to src/extensions/command-panel/command-panel.coffee
index cfd304f70..0573f2ff3 100644
--- a/src/extensions/command-panel.coffee
+++ b/src/extensions/command-panel/command-panel.coffee
@@ -1,7 +1,7 @@
 {View} = require 'space-pen'
-CommandInterpreter = require 'command-interpreter'
-RegexAddress = require 'command-interpreter/regex-address'
-CompositeCommand = require 'command-interpreter/composite-command'
+CommandInterpreter = require 'command-panel/command-interpreter'
+RegexAddress = require 'command-panel/commands/regex-address'
+CompositeCommand = require 'command-panel/commands/composite-command'
 Editor = require 'editor'
 {SyntaxError} = require('pegjs').parser
 
diff --git a/src/extensions/command-interpreter/commands.pegjs b/src/extensions/command-panel/commands.pegjs
similarity index 65%
rename from src/extensions/command-interpreter/commands.pegjs
rename to src/extensions/command-panel/commands.pegjs
index 925845f8a..1a3b92307 100644
--- a/src/extensions/command-interpreter/commands.pegjs
+++ b/src/extensions/command-panel/commands.pegjs
@@ -1,12 +1,12 @@
 {
-  var CompositeCommand = require('command-interpreter/composite-command')
-  var Substitution = require('command-interpreter/substitution');
-  var LineAddress = require('command-interpreter/line-address');
-  var AddressRange = require('command-interpreter/address-range');
-  var EofAddress = require('command-interpreter/eof-address');
-  var CurrentSelectionAddress = require('command-interpreter/current-selection-address')
-  var RegexAddress = require('command-interpreter/regex-address')
-  var SelectAllMatches = require('command-interpreter/select-all-matches')
+  var CompositeCommand = require('command-panel/commands/composite-command')
+  var Substitution = require('command-panel/commands/substitution');
+  var LineAddress = require('command-panel/commands/line-address');
+  var AddressRange = require('command-panel/commands/address-range');
+  var EofAddress = require('command-panel/commands/eof-address');
+  var CurrentSelectionAddress = require('command-panel/commands/current-selection-address')
+  var RegexAddress = require('command-panel/commands/regex-address')
+  var SelectAllMatches = require('command-panel/commands/select-all-matches')
 }
 
 start = expressions:(expression+) {
diff --git a/src/extensions/command-interpreter/address-range.coffee b/src/extensions/command-panel/commands/address-range.coffee
similarity index 87%
rename from src/extensions/command-interpreter/address-range.coffee
rename to src/extensions/command-panel/commands/address-range.coffee
index 01aaab1f5..e8f3c68dd 100644
--- a/src/extensions/command-interpreter/address-range.coffee
+++ b/src/extensions/command-panel/commands/address-range.coffee
@@ -1,4 +1,4 @@
-Address = require 'command-interpreter/address'
+Address = require 'command-panel/commands/address'
 Range = require 'range'
 
 module.exports =
diff --git a/src/extensions/command-interpreter/address.coffee b/src/extensions/command-panel/commands/address.coffee
similarity index 73%
rename from src/extensions/command-interpreter/address.coffee
rename to src/extensions/command-panel/commands/address.coffee
index 5cdf3e5d6..e6ef1e11b 100644
--- a/src/extensions/command-interpreter/address.coffee
+++ b/src/extensions/command-panel/commands/address.coffee
@@ -1,4 +1,4 @@
-Command = require 'command-interpreter/command'
+Command = require 'command-panel/commands/command'
 
 module.exports =
 class Address extends Command
diff --git a/src/extensions/command-interpreter/command.coffee b/src/extensions/command-panel/commands/command.coffee
similarity index 100%
rename from src/extensions/command-interpreter/command.coffee
rename to src/extensions/command-panel/commands/command.coffee
diff --git a/src/extensions/command-interpreter/composite-command.coffee b/src/extensions/command-panel/commands/composite-command.coffee
similarity index 100%
rename from src/extensions/command-interpreter/composite-command.coffee
rename to src/extensions/command-panel/commands/composite-command.coffee
diff --git a/src/extensions/command-interpreter/current-selection-address.coffee b/src/extensions/command-panel/commands/current-selection-address.coffee
similarity index 76%
rename from src/extensions/command-interpreter/current-selection-address.coffee
rename to src/extensions/command-panel/commands/current-selection-address.coffee
index 3c426f8f3..fe4b67f2b 100644
--- a/src/extensions/command-interpreter/current-selection-address.coffee
+++ b/src/extensions/command-panel/commands/current-selection-address.coffee
@@ -1,4 +1,4 @@
-Address = require 'command-interpreter/address'
+Address = require 'command-panel/commands/address'
 Range = require 'range'
 
 module.exports =
diff --git a/src/extensions/command-interpreter/eof-address.coffee b/src/extensions/command-panel/commands/eof-address.coffee
similarity index 83%
rename from src/extensions/command-interpreter/eof-address.coffee
rename to src/extensions/command-panel/commands/eof-address.coffee
index f2db31217..c4f41b577 100644
--- a/src/extensions/command-interpreter/eof-address.coffee
+++ b/src/extensions/command-panel/commands/eof-address.coffee
@@ -1,4 +1,4 @@
-Address = require 'command-interpreter/address'
+Address = require 'command-panel/commands/address'
 Range = require 'range'
 
 module.exports =
diff --git a/src/extensions/command-interpreter/line-address.coffee b/src/extensions/command-panel/commands/line-address.coffee
similarity index 80%
rename from src/extensions/command-interpreter/line-address.coffee
rename to src/extensions/command-panel/commands/line-address.coffee
index 245c3d669..aaebc7a40 100644
--- a/src/extensions/command-interpreter/line-address.coffee
+++ b/src/extensions/command-panel/commands/line-address.coffee
@@ -1,4 +1,4 @@
-Address = require 'command-interpreter/address'
+Address = require 'command-panel/commands/address'
 Range = require 'range'
 
 module.exports =
diff --git a/src/extensions/command-interpreter/regex-address.coffee b/src/extensions/command-panel/commands/regex-address.coffee
similarity index 95%
rename from src/extensions/command-interpreter/regex-address.coffee
rename to src/extensions/command-panel/commands/regex-address.coffee
index 4848ed6af..8fbf13b78 100644
--- a/src/extensions/command-interpreter/regex-address.coffee
+++ b/src/extensions/command-panel/commands/regex-address.coffee
@@ -1,4 +1,4 @@
-Address = require 'command-interpreter/address'
+Address = require 'command-panel/commands/address'
 Range = require 'range'
 
 module.exports =
diff --git a/src/extensions/command-interpreter/select-all-matches.coffee b/src/extensions/command-panel/commands/select-all-matches.coffee
similarity index 87%
rename from src/extensions/command-interpreter/select-all-matches.coffee
rename to src/extensions/command-panel/commands/select-all-matches.coffee
index 4fd759b86..2d29dded9 100644
--- a/src/extensions/command-interpreter/select-all-matches.coffee
+++ b/src/extensions/command-panel/commands/select-all-matches.coffee
@@ -1,4 +1,4 @@
-Command = require 'command-interpreter/command'
+Command = require 'command-panel/commands/command'
 Range = require 'range'
 
 module.exports =
diff --git a/src/extensions/command-interpreter/substitution.coffee b/src/extensions/command-panel/commands/substitution.coffee
similarity index 89%
rename from src/extensions/command-interpreter/substitution.coffee
rename to src/extensions/command-panel/commands/substitution.coffee
index d58a0d388..5daf680b4 100644
--- a/src/extensions/command-interpreter/substitution.coffee
+++ b/src/extensions/command-panel/commands/substitution.coffee
@@ -1,4 +1,4 @@
-Command = require 'command-interpreter/command'
+Command = require 'command-panel/commands/command'
 
 module.exports =
 class Substitution extends Command
diff --git a/src/extensions/command-panel/index.coffee b/src/extensions/command-panel/index.coffee
new file mode 100644
index 000000000..761d95578
--- /dev/null
+++ b/src/extensions/command-panel/index.coffee
@@ -0,0 +1 @@
+module.exports = require 'command-panel/command-panel'
\ No newline at end of file
diff --git a/src/app/keymaps/command-panel.coffee b/src/extensions/command-panel/keymap.coffee
similarity index 100%
rename from src/app/keymaps/command-panel.coffee
rename to src/extensions/command-panel/keymap.coffee
diff --git a/src/extensions/fuzzy-finder.coffee b/src/extensions/fuzzy-finder/fuzzy-finder.coffee
similarity index 100%
rename from src/extensions/fuzzy-finder.coffee
rename to src/extensions/fuzzy-finder/fuzzy-finder.coffee
diff --git a/src/extensions/fuzzy-finder/index.coffee b/src/extensions/fuzzy-finder/index.coffee
new file mode 100644
index 000000000..c1518b670
--- /dev/null
+++ b/src/extensions/fuzzy-finder/index.coffee
@@ -0,0 +1 @@
+module.exports = require 'fuzzy-finder/fuzzy-finder'
diff --git a/src/app/keymaps/fuzzy-finder.coffee b/src/extensions/fuzzy-finder/keymap.coffee
similarity index 100%
rename from src/app/keymaps/fuzzy-finder.coffee
rename to src/extensions/fuzzy-finder/keymap.coffee
diff --git a/src/app/keymaps/keybindings-view.coffee b/src/extensions/keybindings-view/keymap.coffee
similarity index 100%
rename from src/app/keymaps/keybindings-view.coffee
rename to src/extensions/keybindings-view/keymap.coffee
diff --git a/src/app/keymaps/snippets.coffee b/src/extensions/snippets/keymap.coffee
similarity index 100%
rename from src/app/keymaps/snippets.coffee
rename to src/extensions/snippets/keymap.coffee
diff --git a/src/app/keymaps/tree-view.coffee b/src/extensions/tree-view/keymap.coffee
similarity index 100%
rename from src/app/keymaps/tree-view.coffee
rename to src/extensions/tree-view/keymap.coffee
diff --git a/src/extensions/tree-view/tree-view.coffee b/src/extensions/tree-view/tree-view.coffee
index 10179c7fa..ade0c9226 100644
--- a/src/extensions/tree-view/tree-view.coffee
+++ b/src/extensions/tree-view/tree-view.coffee
@@ -171,7 +171,7 @@ class TreeView extends View
         newPath = @rootView.project.resolve(newPath)
         directoryPath = fs.directory(newPath)
         try
-          fs.makeDirectory(directoryPath) unless fs.exists(directoryPath)
+          fs.makeTree(directoryPath) unless fs.exists(directoryPath)
           fs.move(oldPath, newPath)
         catch e
           dialog.showError("Error: " + e.message + " Try a different path:")
@@ -208,15 +208,15 @@ class TreeView extends View
         endsWithDirectorySeperator = /\/$/.test(relativePath)
         path = @rootView.project.resolve(relativePath)
         try
-          if endsWithDirectorySeperator
-            fs.makeDirectory(path)
+          if fs.exists(path)
+            pathType = if fs.isFile(path) then "file" else "directory"
+            dialog.showError("Error: A #{pathType} already exists at path '#{path}'. Try a different path:")
+            false
+          else if endsWithDirectorySeperator
+            fs.makeTree(path)
           else
-            if fs.exists(path)
-              dialog.showError("Error: A file already exists at path '#{path}'. Try a different path:")
-              false
-            else
-              fs.write(path, "")
-              @rootView.open(path)
+            fs.write(path, "")
+            @rootView.open(path)
         catch e
           dialog.showError("Error: " + e.message + " Try a different path:")
           return false
diff --git a/src/extensions/vim-mode.coffee b/src/extensions/vim-mode/index.coffee
similarity index 100%
rename from src/extensions/vim-mode.coffee
rename to src/extensions/vim-mode/index.coffee
diff --git a/src/stdlib/fs.coffee b/src/stdlib/fs.coffee
index b873e453f..4e1516fb9 100644
--- a/src/stdlib/fs.coffee
+++ b/src/stdlib/fs.coffee
@@ -21,7 +21,9 @@ module.exports =
   # parent directory if the file is a directory. A terminal directory
   # separator is ignored.
   directory: (path) ->
-    path.replace(new RegExp("/#{@base(path)}\/?$"), '')
+    parentPath = path.replace(new RegExp("/#{@base(path)}\/?$"), '')
+    return "" if path == parentPath
+    parentPath
 
   # Returns true if the file specified by path exists
   exists: (path) ->
@@ -75,6 +77,15 @@ module.exports =
   read: (path) ->
     $native.read(path)
 
+  # Returns an array of path components. If the path is absolute, the first
+  # component will be an indicator of the root of the file system; for file
+  # systems with drives (such as Windows), this is the drive identifier with a
+  # colon, like "c:"; on Unix, this is an empty string "". The intent is that
+  # calling "join.apply" with the result of "split" as arguments will
+  # reconstruct the path.
+  split: (path) ->
+    path.split("/")
+
   # Open, write, flush, and close a file, writing the given content.
   write: (path, content) ->
     $native.write(path, content)
@@ -82,6 +93,14 @@ module.exports =
   makeDirectory: (path) ->
     $native.makeDirectory(path)
 
+  # Creates the directory specified by "path" including any missing parent
+  # directories.
+  makeTree: (path) ->
+    return unless path
+    if not @exists(path)
+      @makeTree(@directory(path))
+      @makeDirectory(path)
+
   traverseTree: (rootPath, fn) ->
     recurse = null
     prune = -> recurse = false
diff --git a/src/stdlib/require.coffee b/src/stdlib/require.coffee
index cf760ec5b..46f6fbb55 100644
--- a/src/stdlib/require.coffee
+++ b/src/stdlib/require.coffee
@@ -106,12 +106,15 @@ __exists = (path) ->
 
 __coffeeCache = (filePath) ->
   {CoffeeScript} = require 'coffee-script'
-  cacheKey = 'coffee.' + $native.md5ForPath(filePath)
-  if compiled = localStorage.getItem(cacheKey)
-    compiled
+  tmpPath = "/tmp/atom-compiled-scripts"
+  cacheFilePath = [tmpPath, $native.md5ForPath(filePath)].join("/")
+
+  console.log cacheFilePath
+  if __exists(cacheFilePath)
+    __read(cacheFilePath)
   else
     compiled = CoffeeScript.compile(__read(filePath), filename: filePath)
-    localStorage.setItem(cacheKey, compiled)
+    $native.write(cacheFilePath, compiled)
     compiled
 
 __read = (path) ->