setMaxZoom/setMinZoom pass-thru for RMCachedTileSource

@@ -50,13 +50,10 @@
 
 -(void) networkOperationsNotification: (NSNotification*) notification;
 
-
 -(int) tileSideLength;
 
 -(float) minZoom;
 -(float) maxZoom;
--(void) setMinZoom:(NSUInteger) aMinZoom;
--(void) setMaxZoom:(NSUInteger) aMaxZoom;
 
 -(RMSphericalTrapezium) latitudeLongitudeBoundingBox;
 

@@ -152,6 +152,16 @@
   return [tileSource tilePath];
 }
 
+-(void) setMinZoom:(NSUInteger)aMinZoom
+{
+        [tileSource setMinZoom:aMinZoom];
+}
+
+-(void) setMaxZoom:(NSUInteger)aMaxZoom
+{
+        [tileSource setMaxZoom:aMaxZoom];
+}
+
 -(void) removeAllCachedImages
 {
 	[cache removeAllCachedImages];

@@ -50,6 +50,9 @@
 -(float) minZoom;
 -(float) maxZoom;
 
+-(void) setMinZoom:(NSUInteger) aMinZoom;
+-(void) setMaxZoom:(NSUInteger) aMaxZoom;
+
 -(RMSphericalTrapezium) latitudeLongitudeBoundingBox;
 
 -(void) didReceiveMemoryWarning;