Added a dismissTapAnywhere option

When enabled the user can tap anywhere on the container view to dismiss
the popup.

CMPopTipView/CMPopTipView.h

@@ -122,11 +122,13 @@ typedef enum {
 	PointDirection			pointDirection;
 	CGFloat					pointerSize;
 	CGPoint					targetPoint;
+    UIButton                *dismissTarget;
 }
 
 @property (nonatomic, retain)			UIColor					*backgroundColor;
 @property (nonatomic, assign)		id<CMPopTipViewDelegate>	delegate;
 @property (nonatomic, assign)			BOOL					disableTapToDismiss;
+@property (nonatomic, assign)			BOOL					dismissTapAnywhere;
 @property (nonatomic, retain)			NSString				*message;
 @property (nonatomic, retain)           UIView	                *customView;
 @property (nonatomic, retain, readonly)	id						targetObject;

CMPopTipView/CMPopTipView.m

@@ -45,6 +45,7 @@ @implementation CMPopTipView
 @synthesize animation;
 @synthesize maxWidth;
 @synthesize disableTapToDismiss;
+@synthesize dismissTapAnywhere;
 
 - (CGRect)bubbleFrame {
 	CGRect bubbleFrame;
@@ -235,6 +236,16 @@ - (void)presentPointingAtView:(UIView *)targetView inView:(UIView *)containerVie
 	if (!self.targetObject) {
 		self.targetObject = targetView;
 	}
+
+    // If we want to dismiss the bubble when the user taps anywhere, we need to insert
+    // an invisible button over the background.
+    if ( self.dismissTapAnywhere ) {
+        self->dismissTarget = [UIButton buttonWithType:UIButtonTypeCustom];
+        [self->dismissTarget addTarget:self action:@selector(touchesBegan:withEvent:) forControlEvents:UIControlEventTouchUpInside];
+        [self->dismissTarget setTitle:@"" forState:UIControlStateNormal];
+        self->dismissTarget.frame = containerView.bounds;
+        [containerView addSubview:self->dismissTarget];
+    }
 
 	[containerView addSubview:self];
 
@@ -409,6 +420,11 @@ - (void)presentPointingAtBarButtonItem:(UIBarButtonItem *)barButtonItem animated
 
 - (void)finaliseDismiss {
 	[self removeFromSuperview];
+
+    if ( self->dismissTarget ) {
+        [self->dismissTarget removeFromSuperview];        
+    }
+
 	highlight = NO;
 	self.targetObject = nil;
 }
@@ -491,6 +507,7 @@ - (id)initWithFrame:(CGRect)frame {
 		self.backgroundColor = [UIColor colorWithRed:62.0/255.0 green:60.0/255.0 blue:154.0/255.0 alpha:1.0];
         self.borderColor = [UIColor blackColor];
         self.animation = CMPopTipAnimationSlide;
+        self.dismissTapAnywhere = NO;
     }
     return self;
 }