Add Swift support.

Add Swift support.
Without `#import <UIKit/UIKit.h>`,Xcode would pop error “unknown type”with UIColor,UIImage,CGFloat and so on.
This happens when dragging the whole CLImageEditor into project instead of using coacopods.
Add Swift support.

Add Swift support.
Without `#import <UIKit/UIKit.h>`,Xcode would pop error “unknown type”with UIColor,UIImage,CGFloat and so on.
This happens when dragging the whole CLImageEditor into project instead of using coacopods.
Add Swift support.

Add Swift support.
Without `#import <UIKit/UIKit.h>`,Xcode would pop error “unknown type”with UIColor,UIImage,CGFloat and so on.
This happens when dragging the whole CLImageEditor into project instead of using coacopods.
Add Swift support.

Add Swift support.
Without `#import <UIKit/UIKit.h>`,Xcode would pop error “unknown type”with UIColor,UIImage,CGFloat and so on.
This happens when dragging the whole CLImageEditor into project instead of using coacopods.
Merge pull request #80 from peiweichen/develop

Add Swift support when dragging the whole CLImageEditor into project instead of using coacopods.