Move cut, copy, and paste into "core:"

src/app/editor.coffee

@@ -110,9 +110,9 @@ class Editor extends View
       'core:delete': @delete
       'core:undo': @undo
       'core:redo': @redo
-      'cut': @cutSelection
-      'copy': @copySelection
-      'paste': @paste
+      'core:cut': @cutSelection
+      'core:copy': @copySelection
+      'core:paste': @paste
       'move-to-next-word': @moveCursorToNextWord
       'move-to-previous-word': @moveCursorToPreviousWord
       'select-word': @selectWord

src/app/keymaps/atom.coffee

@@ -15,6 +15,9 @@ window.keymap.bindKeys 'body'
   'delete': 'core:delete'
   'meta-z': 'core:undo'
   'meta-Z': 'core:redo'
+  'meta-x': 'core:cut'
+  'meta-c': 'core:copy'
+  'meta-v': 'core:paste'
   pageup: 'core:page-up'
   pagedown: 'core:page-down'
   'meta-S': 'save-all'

src/app/keymaps/editor.coffee

@@ -4,9 +4,6 @@ window.keymap.bindKeys '.editor',
   'meta-enter': 'newline-below'
   'tab': 'indent'
   'meta-d': 'delete-line'
-  'meta-x': 'cut'
-  'meta-c': 'copy'
-  'meta-v': 'paste'
   'alt-meta-w': 'toggle-soft-wrap'
   'ctrl-[': 'fold-current-row'
   'ctrl-]': 'unfold-current-row'