Removed current double-touch behaviour. How should we handle this?

Also added geographic survey projection as per request.

@@ -212,7 +212,7 @@
 	//Double-tap detection (currently used for debugging pixelToLatLng() method)
 	if (touch.tapCount == 2)
 	{
-		NSLog(@"***************************************************");
+/*		NSLog(@"***************************************************");
 		NSLog(@"Begin double-tap pixel/LatLng translation debug test");
 		CGPoint pixel = [touch locationInView:self];
 		NSLog(@"Double-tap detected at: x=%f, y=%f", pixel.x, pixel.y);
@@ -230,6 +230,12 @@
 		
 		NSLog(@"Converted LatLng to Pixel says we tapped at: x=%f, y=%f", screenPoint.x, screenPoint.y);
 		NSLog(@"***************************************************");
+*/
+
+		
+		// For consistancy with the built-in map app, I want to do something like this:
+		//		[contents zoomInToNextNativeZoom];
+	
 	}
 	//***************************************************************************************
 	

@@ -21,6 +21,8 @@
 
 + (RMProjection *) googleProjection;
 + (RMProjection *) EPSGLatLong;
++ (RMProjection *) OSGB;
+
 
 - (id) initWithString: (NSString*)params;
 

@@ -84,6 +84,7 @@ NS_INLINE RMLatLong RMPixelPointAsLatLong(RMXYPoint xypoint) {
 
 static RMProjection* _google = nil;
 static RMProjection* _latlong = nil;
+static RMProjection* _osgb = nil;
 
 + (RMProjection*)googleProjection
 {
@@ -98,7 +99,7 @@ static RMProjection* _latlong = nil;
 	}
 }
 
-+ (RMProjection*)EPSGLatLong;
++ (RMProjection*)EPSGLatLong
 {
 	if (_latlong)
 	{
@@ -111,4 +112,20 @@ static RMProjection* _latlong = nil;
 	}
 }
 
++(RMProjection*) OSGB
+{
+	if (_osgb)
+	{
+		return _osgb;
+	}
+	else
+	{// OSGB36 and tmerc
+		_osgb = [[RMProjection alloc] initWithString:@"+proj=tmerc
+					+lat_0=49 +lon_0=-2 +k=0.999601 +x_0=400000 +y_0=-100000 +ellps=airy
+					+datum=OSGB36 +units=m +no_defs"];
+		return _osgb;
+	}
+}
+
+
 @end