Add meta plugin for XEP-0302 for the 2012 compliance suite.

There are still a few remaining items in the RFCs to add support for,
but the current plugin support matches the advanced client profile.

sleekxmpp/plugins/__init__.py

@@ -59,4 +59,5 @@ __all__ = [
     'xep_0256',  # Last Activity in Presence
     'xep_0258',  # Security Labels in XMPP
     'xep_0270',  # XMPP Compliance Suites 2010
+    'xep_0302',  # XMPP Compliance Suites 2012
 ]

sleekxmpp/plugins/xep_0302.py

@@ -0,0 +1,18 @@
+"""
+    SleekXMPP: The Sleek XMPP Library
+    Copyright (C) 2012 Nathanael C. Fritz, Lance J.T. Stout
+    This file is part of SleekXMPP.
+
+    See the file LICENSE for copying permission.
+"""
+
+from sleekxmpp.plugins import BasePlugin
+
+
+class XEP_0302(BasePlugin):
+
+    name = 'xep_0302'
+    description = 'XEP-0302: XMPP Compliance Suites 2012'
+    dependencies = set(['xep_0030', 'xep_0115', 'xep_0054',
+                        'xep_0163', 'xep_0045', 'xep_0085',
+                        'xep_0184', 'xep_0198'])