LLAButtonA UIButton subclass that supports setting colors for different states.License: MITObjective CLLACategoriesA collection of categories for UIKit and Foundation classes.License: MITObjective CLLACircularProgressViewAn iOS7 style circular progress view with a stop button.License: MITObjective CLLARateLimiterA rate limiter with a delightful API.License: MITObjective CLLARingSpinnerViewAn animated ring spinner view for displaying indeterminate progress.License: MITObjective C