add gitignore to avoid dirty repo
upgrade deployment target to 7.0
use assets catalog from now
replace deprecated method sizeWithFont: by sizeWithAttributes:
update deprecated setState method by setCheckState:
update deprecated toogleState method by toogleCheckState
upgrade iphone / ipad xibs version
remove dirty and useless user/pod files
remove .DS_Store
avoid warning by using CGFloat instead of float
remove empty Podfile
Merge pull request #12 from james075/master

clean / update project to the latest SDK