Do not display fork button if target repo already exists (fixes #944)

James Moger

2015-11-10 c332d9a3d4d9485cfe60fb8dd9db7dbde971642c

 src/test/java/com/gitblit/tests/mock/MemorySettings.java

@@ -48,6 +48,11 @@
   }

   @Override
   public boolean saveSettings() {
      return false;
   }

   @Override
   public boolean saveSettings(Map<String, String> updatedSettings) {
      return false;
   }