Fixed sample code to register for photo services

README had old sample code for registering for services; updated to match the current API.
Merge pull request #31 from karlbecker/master

Fixed sample code to register for photo services
Refactors crop mode handling
More refactoring
Typo changes on documentation
Minor UI changes to sample project
Adds ability to set a custom cropping size. Fixes #30.
Merge branch 'master' of https://github.com/dzenbot/DZNPhotoPickerController
Version bump (1.3.2)
Renames 'DZNPhotoPickerControllerService' to 'DZNPhotoPickerControllerServices'
Adds ZoomScale value output when editing a photo
Refactors minimally the sample project
Update README.md
Minor refactoring and fixing a bug that would cause to open twice the photo editor.
Minor refactoring and typo corrections
Adds header file for importing all UIImagePickerController extension classes
Merge branch 'master' of https://github.com/dzenbot/DZNPhotoPickerController
Changes third-party classes import to include only .h file instead of library path
Momentarily switches using guideRect instead of cropRect for rectangle cropping result
Merge branch 'master' of https://github.com/dzenbot/DZNPhotoPickerController into merge_branch

Conflicts:
	DZNPhotoPickerController.podspec
	Examples/Sample/Sample.xcworkspace/xcshareddata/Sample.xccheckout
	Source/Classes/ServicesAPI/DZNPhotoServiceClient.h