Some more style fixes for Windows; Fixed spacing on Songs media manager.

openlp.pyw

@@ -50,6 +50,13 @@ QDockWidget::title
   padding-left: 5px;
   padding-top: 3px;
 }
+
+QToolBar
+{
+  border: none;
+  /*margin: 0;*/
+  padding: 0;
+}
 """
 
 class OpenLP(QtGui.QApplication):

openlp/plugins/songs/lib/mediaitem.py

@@ -68,6 +68,7 @@ class SongMediaItem(MediaManagerItem):
             u'Maintain the lists of authors, topics and books'),
             ':/songs/song_maintenance.png', self.onSongMaintenanceClick,
             'SongMaintenanceItem')
+        self.PageLayout.setSpacing(4)
         self.SearchLayout = QtGui.QFormLayout()
         self.SearchLayout.setMargin(0)
         self.SearchLayout.setSpacing(4)