Updated the XEP-0085 plugin.

Can now be used as so:

>>> msg['chat_state']
''
>>> msg
<message />

>>> msg['chat_state'] = 'paused'
>>> msg
<message>
  <paused xmlns="http://jabber.org/protocol/chatstates" />
</message>

>>> msg['chat_state']
'paused'

>>> del msg['chat_state']
>>> msg
<message />

1 files changed, 1 insertions, 0 deletions

diff --git a/setup.py b/setup.py
index ae8cf682..4575a078 100644
--- a/setup.py
+++ b/setup.py
@@ -50,6 +50,7 @@ packages     = [ 'sleekxmpp',
                  'sleekxmpp/plugins/xep_0030',

                  'sleekxmpp/plugins/xep_0030/stanza',

                  'sleekxmpp/plugins/xep_0059',

+                 'sleekxmpp/plugins/xep_0085',

                  'sleekxmpp/plugins/xep_0092',

                  'sleekxmpp/plugins/xep_0199',

                  ]