Fix NPEs when handling referenced milestones that do not exist

James Moger

2014-09-04 270e9e762820833d6815e362034dc3f4809b6470

 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;
   }