Add xep_0095 and xep_0096 to setup so they are installed into the egg

By default in develop branch XEP-0095 and XEP-0096 plugins aren't installed when you run ``` python setup.py install```  This fixes that issue.

If these weren't enabled, you'd get errors like this when trying to load the XEP:

```
Traceback (most recent call last):
  File "build/bdist.linux-x86_64/egg/sleekxmpp/plugins/base.py", line 90, in load_plugin
    __import__(module)
ImportError: No module named xep_0096
ERROR    at 2013-05-27 06:12:57,720 : Unable to load plugin: xep_0096
Traceback (most recent call last):
  File "build/bdist.linux-x86_64/egg/sleekxmpp/plugins/base.py", line 90, in load_plugin
    __import__(module)
ImportError: No module named xep_0096
Traceback (most recent call last):
  File "./client.py", line 171, in <module>
    xmpp = SysBotXMPP()
  File "./client.py", line 102, in __init__
    self.register_plugin(xep, cls_init.plugin_opts)
  File "build/bdist.linux-x86_64/egg/sleekxmpp/basexmpp.py", line 267, in register_plugin
  File "build/bdist.linux-x86_64/egg/sleekxmpp/plugins/base.py", line 162, in enable
sleekxmpp.plugins.base.PluginNotFound: xep_0096
```