Bug 664697 - Convert newsblog util.js into a module. r=Standard8, r=philip.chee

--HG--
rename : mailnews/extensions/newsblog/content/utils.js => mailnews/extensions/newsblog/content/FeedUtils.jsm
Bug 786936 - Implement utility methods to register/unregister mock. r=Standard8
Bug 786936 - Use MockFactory.js to register/unregister mocks. r=Standard8
Bug 945045 - Remove nsISupportsArray in mailnews/import. r=Standard8
CLOSED TREE