DTAlertView: Moved action block to delegate clickedButtonAtIndex: method
DTProgressHUDDemo: Added DTAlertView example
Hotfixed build problem in DTLog
DTAlertView: Remove duplicated init method

Only one designated initializer should exist per class.
DTActionSheet: Fixed to work on iOS 8
DTAlertView: Improved initalizers design so all three initializers work correctly
DTProgressHUD: Updated DTActionSheet and DTAlertView examples
DTAlertView & DTActionSheet: Improved unit tests to cover all three possible initalizers
Project: Added DTActionSheet unit test
DTActionSheet & DTAlertView: Changed designated initializer back to init so all initializers work correctly on iOS 8, iOS 7 and iOS 6.

Also updated examples a little.
Merge pull request #73 from obviousengineering/dtactionsheet

DTActionSheet & DTAlertView working on iOS 6, 7 & 8
Merge branch 'release-1.7.2'
changed that self.delegate is not overridden because UIAlertView seems to use self.delegate internaly in iOS8.
This caused that the block callbacks did not work anymore.
So I introduced a property alertViewDelegate, that can be uses like the UIAlertView delegate property.
If someone uses the setDelegate methods, a warning is shown.
Fixed iOS8 problems in DTActionSheet, created demo for DTActionSheet
Fixed DTAlertView test on iOS7, now I don't call a show -> (was iOS problem)
Preventing warning when delegate is set nil
didPresentActionSheet: and willPresentActionsheet: now check for the appropriate selector on the actionSheetDelegate
Merge pull request #78 from MPiccinato/DelegateForwardingFix

Crash on didPresentActionSheet: and willPresentActionsheet:
DTActionSheet: Use UIActionSheetDelegate protocol rather than UIAlertViewDelegate one
DTAlertView: Removed no longer needed _externalDelegate ivar