Xcode 6.3.2 support

[firvorski]

It seems that updating the plist with the new UUID does not work any more in Xcode 6.3.2. I can see the shortcuts in the keyboard preferences but menu entries do not show up in the Xcode edit menu. I tried following what these guys did to fix a similar issue to no avail. https://github.com/kattrali/cocoapods-xcode-plugin/issues/62