message: de-pointerify new bool props on AROpaqueImageView
diff: @interface AROpaqueImageView : UIImageView
  @property (nonatomic, strong, readwrite) NSURL *imageURL;
  @property (nonatomic, strong, readwrite) UIColor *placeholderBackgroundColor;
  -@property (nonatomic, readwrite) BOOL *noAnimation;
  -@property (nonatomic, readwrite) BOOL *failSilently;
  -@property (nonatomic, readwrite) BOOL *highPriority;
  +@property (nonatomic, assign, readwrite) BOOL noAnimation;
  +@property (nonatomic, assign, readwrite) BOOL failSilently;
  +@property (nonatomic, assign, readwrite) BOOL highPriority;
  @end
  