Edits to make GWT compilation work

html/build.gradle

@@ -3,7 +3,7 @@ apply plugin: "jetty"
 
 gwt {
     gwtVersion='2.8.0' // Should match the gwt version used for building the gwt backend
-    maxHeapSize="1G" // Default 256m is not enough for gwt compiler. GWT is HUNGRY
+    maxHeapSize="2G" // Default 256m is not enough for gwt compiler. GWT is HUNGRY
     minHeapSize="1G"
 
     src = files(file("src/")) // Needs to be in front of "modules" below.
@@ -13,6 +13,7 @@ gwt {
 
     compiler {
         strict = true;
+        //enableClosureCompiler = true;
         disableCastChecking = true;
     }
 }