plugin XEP-0045: various fixes/improvments: - use self.txt_cmds instead of self.host.plugins["XEP-0045"] - nick and options in join have now default values - directly raise ConflictError when room is already joined instead of using defer.fail - removed self.host.getClient where it's now useless because client is used instead of profile

Use this module to temporary store files that need to be integrated to other
projects such as Wokkel.

For example, the changeset that introduced this folder adds RSM (XEP-0059)
support to Wokkel. The files in sat.tmp.wokkel are imported over the initial
wokkel files from sat.plugins.__init__.py