Bug 863841 - Implement recognition of double-tap gestures with smartMagnifyWithEvent (Mountain Lion and up), and magnifyWithEvent (Lion). r=smichaud, r=masayuki


On 10.6 SDK, it was necessary to change nsCocoaWindow.mm/h in order to make it call magnifyWithEvent for double-tap gestures properly.
Bug 864666 - Replace composing span when committing char as key. r=cpeterson
Bug 866833 - Drop never-checked and unnecessary 'rv' variables from nsControllerCommandTable.cpp. r=bz