recent: Set contains bitfield so that the filter actually works

See https://bugzilla.gnome.org/show_bug.cgi?id=726900

Author: kaiw

meld/recent.py

@@ -208,6 +208,7 @@ def _filter_items(self, recent_filter, items):
             for attr in attrs:
                 filter_data[attr] = getattr(i, "get_" + attr)()
             filter_info = Gtk.RecentFilterInfo()
+            filter_info.contains = recent_filter.get_needed()
             for f, v in filter_data.iteritems():
                 # https://bugzilla.gnome.org/show_bug.cgi?id=695970
                 if isinstance(v, list):