Bug 1037433 - Add the nsISystemStatusBar interface. sr=vlad
Bug 1037433 - Add nsSystemStatusBarCocoa implementation of nsISystemStatusBar. . r=smichaud

This can be accessed from script using Cc["@mozilla.org/widget/macsystemstatusbar;1"].getService(Ci.nsISystemStatusBar).
Bug 1037433 - Trigger icon loads for the root menu item of a standalone native menu. r=smichaud
Bug 1037433 - Propagate menu icon updates in native Mac menus upwards. r=smichaud
Bug 1037433 - Update the image of an NSStatusItem when the image of its corresponding NSMenuItem changes. r=smichaud