Return a Disposable from TooltipManager::add

spec/tooltip-manager-spec.coffee

@@ -64,3 +64,15 @@ describe "TooltipManager", ->
           hover element, ->
             tooltipElement = document.body.querySelector(".tooltip")
             expect(tooltipElement).toHaveText "⌃X ⌃Y"
+
+    describe "when .dispose() is called on the returned disposable", ->
+      it "no longer displays the tooltip on hover", ->
+        disposable = manager.add element, title: "Title"
+
+        hover element, ->
+          expect(document.body.querySelector(".tooltip")).toHaveText("Title")
+
+        disposable.dispose()
+
+        hover element, ->
+          expect(document.body.querySelector(".tooltip")).toBeNull()

src/tooltip-manager.coffee

@@ -1,4 +1,5 @@
 _ = require 'underscore-plus'
+{Disposable} = require 'event-kit'
 {$} = require './space-pen-extensions'
 
 # Essential: Associates tooltips with HTML elements or selectors.
@@ -41,7 +42,10 @@ class TooltipManager
       options.selector = target
       target = document.body
 
-    $(target).tooltip(_.defaults(options, @defaults))
+    $target = $(target)
+    $target.tooltip(_.defaults(options, @defaults))
+
+    new Disposable -> $target.tooltip('destroy')
 
 humanizeKeystrokes = (keystroke) ->
   keystrokes = keystroke.split(' ')