Modified two methods:
From
		+ (void)removeAllFromView:(id)view inFrame:(CGRect)frame;
		- (void)removeFromSuperviewInFrame:(CGRect)frame;
To
		+ (void)removeAllFromView:(id)view inRect:(CGRect)rect;
		- (void)removeFromSuperviewInRect:(CGRect)rect;
Develop: Add some useful methods, and refactoring a small amount of codes.