[pitivi: 5/6] Really fix Signallable so that tests/test_signallable.py passes.

[Edward Hervey <edwardrv src gnome org>]

commit e0dddeadc9c1276bdfe214e5932e16b273fa04f4
Author: Alessandro Decina <alessandro d gmail com>
Date:   Mon Jun 8 17:58:29 2009 +0200

    Really fix Signallable so that tests/test_signallable.py passes.
---
 pitivi/settings.py |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/pitivi/settings.py b/pitivi/settings.py
index 7c2a136..5912093 100644
--- a/pitivi/settings.py
+++ b/pitivi/settings.py
@@ -138,8 +138,10 @@ class GlobalSettings(Signallable):
     options = {}
     environment = set()
     defaults = {}
+    __signals__ = {}
 
     def __init__(self, **kwargs):
+        Signallable.__init__(self)
         self._config = SafeConfigParser()
         self._readSettingsFromGlobalConfiguration()
         self._readSettingsFromConfigurationFile()