Merge pull request #36 from Metaxa007/menu-icon

Closes #35

Author: TomTasche

OpenDocumentReader/Main.storyboard

@@ -50,7 +50,7 @@
                                                 </connections>
                                             </barButtonItem>
                                             <barButtonItem style="plain" systemItem="flexibleSpace" id="lgr-dX-fUO"/>
-                                            <barButtonItem systemItem="action" id="Vsd-IL-ujz">
+                                            <barButtonItem image="ellipsis" catalog="system" id="Vsd-IL-ujz">
                                                 <inset key="imageInsets" minX="0.0" minY="8" maxX="0.0" maxY="0.0"/>
                                                 <connections>
                                                     <action selector="showMenu:" destination="M2k-L8-Olo" id="ZQ1-Aa-9D0"/>