Fix for Issue BuildmLearn#23, BuildmLearn#24

Author: scopeInfinity

source-code/app/src/main/java/org/buildmlearn/toolkit/activity/TemplateEditor.java

@@ -248,6 +248,7 @@ public boolean onCreateOptionsMenu(Menu menu) {
     @Override
     public boolean onPrepareOptionsMenu(Menu menu) {
         Log.d(TAG, "onPrepareOptionsMenu");
+        menu.clear();
         if (showTemplateSelectedMenu) {
             getMenuInflater().inflate(R.menu.menu_template_item_selected, menu);
         } else {