Switch from html to js plugin

Support for html plugins was removed in change 299364.

Bug: Issue 14335
Change-Id: I20c3252431a6edbde12f8e63103580bd853be751
diff --git a/src/main/java/com/googlesource/gerrit/plugins/zuul/HttpModule.java b/src/main/java/com/googlesource/gerrit/plugins/zuul/HttpModule.java
index bc6db6b..035daef 100644
--- a/src/main/java/com/googlesource/gerrit/plugins/zuul/HttpModule.java
+++ b/src/main/java/com/googlesource/gerrit/plugins/zuul/HttpModule.java
@@ -22,6 +22,6 @@
 public class HttpModule extends ServletModule {
   @Override
   protected void configureServlets() {
-    DynamicSet.bind(binder(), WebUiPlugin.class).toInstance(new JavaScriptPlugin("zuul.html"));
+    DynamicSet.bind(binder(), WebUiPlugin.class).toInstance(new JavaScriptPlugin("zuul.js"));
   }
 }