Applied this recommendations: https://developer.apple.com/library/ios/#technotes/iOSStaticLibraries/Introduction.html
Added .pch file speed up compilation time.
Little typo fix.
Performed suggest Xcode project modernization.
Added iOS 7 resources to the demo project.

- new icon size (+ missing existing icon sizes)
- new launch images (+ updated iOS 6 images)
- a convenient screenshot mode setting
Added new Xcode shareddata.
Using iOS 7 text size methods, when deploying to iOS 7+.

- circumvents deprication warnings
Removed .gitattributes.
Forcing zero label height when text is set to @“”.
- fix a possible memory leak
Merge pull request #163 from jdg/iOS7

I os7 fixes
Merge branch 'master' of github.com:jdg/MBProgressHUD
Merge pull request #158 from lono175/master

Fix for a possible memory leak.
Merge branch 'master' of github.com:jdg/MBProgressHUD
Changed the URL sample file and improved expectedLength handling.
Calling hudWasHidden: at the end of the done method.
Fixed threading bug in the myMixedTask demo.
Version bump to 0.8.