Netgis client update

* adds bugfixes and improvements
    - point / line auto buffer key input change buffer
    - pass default buffer values from config
    - update area label while vertex editing
    - auto buffer remove source geoms when done
    - toggle cut tool off when done
    - toggle delete tool off when done
    - allow panning while vertex editing (middle mouse button)

templates/map/client/libs/netgis/Util.js

@@ -190,6 +190,7 @@ netgis.util =
 			output = i + ( large ? " km²" : " m²" );
 			
 			//NOTE: HTML Superscript / Unicode (² etc.) not supported in OL Labels
+			
 			return output;
 		};