Major refactor, extract animations and transitions to smaller methods

use ivars to help with memory management, etc

Author: casademora

.gitignore

@@ -6,6 +6,8 @@
 *.pyc 
 *~.nib/
 build/*
+*/xcuserdata/*
+*/project.xcworkspace/*
 
 # Textmate - if you build your xcode projects with it
 *.tm_build_errors

Classes/MGPProgressButton.h

@@ -36,9 +36,9 @@ typedef enum {
 @property (nonatomic, assign) CGFloat progress;
 @property (nonatomic, retain) UIColor *progressColor;
 @property (nonatomic, assign) ProgressButtonState buttonState;
-@property (nonatomic, readonly) CAShapeLayer *progressRing;
+@property (nonatomic, retain, readonly) CAShapeLayer *progressRing;
 
-- (IBAction) beginLoading;
+- (IBAction) handleTouchUpInside:(id)sender;
 - (IBAction) resetProgress;
 
 - (void) setButtonState:(ProgressButtonState)newState animated:(BOOL)animated;