Add a nice little icon for the plugin list.

openlp/core/ui/mainwindow.py

@@ -265,7 +265,8 @@ class Ui_MainWindow(object):
         self.ViewServiceManagerItem.setIcon(ServiceManagerIcon)
         self.ViewServiceManagerItem.setObjectName(u'ViewServiceManagerItem')
         self.SettingsPluginListItem = QtGui.QAction(MainWindow)
-        #self.SettingsPluginListItem.setIcon(AlertIcon)
+        PluginListIcon = build_icon(u':/system/settings_plugin_list.png')
+        self.SettingsPluginListItem.setIcon(PluginListIcon)
         self.SettingsPluginListItem.setObjectName(u'SettingsPluginListItem')
         self.HelpDocumentationItem = QtGui.QAction(MainWindow)
         ContentsIcon = build_icon(u':/system/system_help_contents.png')

resources/images/openlp-2.qrc

@@ -98,6 +98,7 @@
     <file>system_servicemanager.png</file>
     <file>system_thememanager.png</file>
     <file>system_exit.png</file>
+    <file>settings_plugin_list.png</file>
     <file>system_settings.png</file>
   </qresource>
   <qresource prefix="media">