Fix camera position buttons in WebGL export

Fix the "View Top" and "View Front" buttons on pages generated with the
WebGL exporter to select the same views as the FreeCAD Navigation Cube.

src/Mod/Arch/importWebGL.py

@@ -326,8 +326,8 @@ def getHTMLTemplate():
                     clippingz: 100,
                     cameraType: cameraType,
                     navright: function() { navChange( [1,0,0] ); },
-                    navtop:   function() { navChange( [0,1,0] ); },
-                    navfront: function() { navChange( [0,0,1] ); }
+                    navtop:   function() { navChange( [0,0,1] ); },
+                    navfront: function() { navChange( [0,-1,0] ); }
                 };
                 
                 // ---- Wires ----
@@ -807,4 +807,4 @@ def baseEncode( arr ):
         output.append( buffer )
         if len(buffer) > longest: longest = len(buffer)
     output = [('{:>'+str(longest)+'}').format(x) for x in output] # pad each element
-    return str(longest) + ('').join(output)
+    return str(longest) + ('').join(output)