Bug fix for tag selection

- we can now select a tag and reload only the collection view of this
theme
- stretchable shadow image added
- cleaning NSArray and co categories
- New colors added on the picker screen
Bug fix fox tag selection

- we can now select a tag and reload only the collection view of this
theme
- stretchable shadow image added
- cleaning NSArray and co categories
- New colors added on the picker screen
Merge branch 'master' of https://github.com/tchillr/tchillr_ios

Conflicts:
	TCApp/trunk/src/TCApp.xcodeproj/project.pbxproj
	TCApp/trunk/src/TCApp/en.lproj/MainStoryboard.storyboard