Changed opensong import file extension to All files *.*

openlp/plugins/songs/songsplugin.py

@@ -201,7 +201,7 @@ class SongsPlugin(Plugin):
         filenames = QtGui.QFileDialog.getOpenFileNames(
             None, translate('SongsPlugin',
                 'Open OpenSong file'),
-            u'', u'OpenSong file (*. *.zip *.ZIP)')
+            u'', u'All files (*.*)')
         try:
             for filename in filenames:
                 importer = OpenSongImport(self.manager)
@@ -236,4 +236,4 @@ class SongsPlugin(Plugin):
         if not self.manager.get_all_objects_filtered(Song,
             Song.theme_name == theme):
             return True
-        return False
+        return False