setup idea for self contained context
fix time zone
fix issue with create date from json with time zone
redone swipe cell using gesture recogniser
Merge branch 'master' of github.com:holyman2k/WXKit into develop

* 'master' of github.com:holyman2k/WXKit:
  check for empty string add check for null
  add short cut to find first object in array that match a block
  added method to create flexible and fixed with UIBarButtonItem
  improve auto layout helpers
  fix date paring bug

Conflicts:
	WXKit/WXKit/NSDate+WXKit.m