Support rotation gesture.
Remove unused method.
Fix hit area.
Add constrain control.
Fix typo.
Refine resources directory structure.
Update podspec.
Allow PECropView to be created from Storyboard
Merge pull request #7 from lammertw/improvements

Allow PECropView to be created from Storyboard
Use weak reference for delegate property.
Add new feature: Keep crop aspect ratio while resizing.
Update README.
Update podspec for 1.2.0.
Separate image cropping logic into a separate UIImage category to ease reusability
PECropView: add zoomedCropRect and rotation read-only properties
Update Demo App
Merge pull request #11 from rivera-ernesto/master

Modularize cropping logic
Remove trailing space.
Fix overflow crop rect on set some acpect ratio.
Desable multi touch on crop handle.