fixes #99: recognize annotation gestures on user location dot, too

@@ -81,11 +81,21 @@
             if ([annotation.annotationType isEqualToString:kRMTrackingHaloAnnotationTypeName])
                 _trackingHaloAnnotation = annotation;
 
-    _userLocationAnnotation.layer.hidden = _accuracyCircleAnnotation.layer.hidden = _trackingHaloAnnotation.layer.hidden = YES;
+    // here we hide the accuracy circle & tracking halo to exclude from hit
+    // testing, as well as be sure to show the user location (even if in
+    // heading mode) to ensure hits on it
+    //
+    BOOL flag = _userLocationAnnotation.layer.isHidden;
+
+    _userLocationAnnotation.layer.hidden = NO;
+
+    _accuracyCircleAnnotation.layer.hidden = _trackingHaloAnnotation.layer.hidden = YES;
 
     CALayer *hit = [self.layer hitTest:point];
 
-    _userLocationAnnotation.layer.hidden = _accuracyCircleAnnotation.layer.hidden = _trackingHaloAnnotation.layer.hidden = NO;
+    _userLocationAnnotation.layer.hidden = flag;
+
+    _accuracyCircleAnnotation.layer.hidden = _trackingHaloAnnotation.layer.hidden = NO;
 
     return hit;
 }

@@ -21,21 +21,19 @@
     if ( ! (self = [super initWithMapView:aMapView coordinate:aCoordinate andTitle:aTitle]))
         return nil;
 
-    layer = [[RMMarker alloc] initWithUIImage:[UIImage imageNamed:@"TrackingDot.png"]];
+    self.layer = [[[RMMarker alloc] initWithUIImage:[UIImage imageNamed:@"TrackingDot.png"]] autorelease];
 
-    layer.zPosition = -MAXFLOAT + 2;
+    self.layer.zPosition = -MAXFLOAT + 2;
 
-    annotationType = [kRMUserLocationAnnotationTypeName retain];
+    self.annotationType = kRMUserLocationAnnotationTypeName;
 
-    clusteringEnabled = NO;
+    self.clusteringEnabled = NO;
 
     return self;
 }
 
 - (void)dealloc
 {
-    [layer release]; layer = nil;
-    [annotationType release]; annotationType = nil;
     [location release]; location = nil;
     [heading release]; heading = nil;
     [super dealloc];