[TIMOB-12618] Expose UIRefreshControl
[TIMOB-12618] Doc Update
[TIMOB-12618] Doc Update
Merge branch 'master' of git://github.com/appcelerator/titanium_mobile into timob-12618

Conflicts:
	iphone/Classes/TiUITableView.h
Merge pull request #4818 from vishalduggal/timob-12618

[TIMOB-12618] IOS: Expose UIRefreshControl