gotr expects fjid to be str, but it can be nbxmpp.JID. Converting to str
shouldn't hurt, although could as well call fjid.getStripped() instead
of gajim.get_jid_without_resource.

Traceback (most recent call last):
  File "/usr/lib64/python2.7/site-packages/gajim/common/ged.py", line 93, in raise_event
    if handler(*args, **kwargs):
  File "/home/livid/.local/share/gajim/plugins/gotr/otrmodule.py", line 564, in handle_incoming_msg
    appdata={'thread':event.session.thread_id if event.session else None})
  File "/home/livid/.local/share/gajim/plugins/gotr/potr/context.py", line 210, in receiveMessage
    self.crypto.handleAKE(message, appdata=appdata)
  File "/home/livid/.local/share/gajim/plugins/gotr/potr/crypt.py", line 282, in handleAKE
    outMsg = self.ake.handleRevealSig(inMsg)
  File "/home/livid/.local/share/gajim/plugins/gotr/potr/crypt.py", line 420, in handleRevealSig
    self.onSuccess(self)
  File "/home/livid/.local/share/gajim/plugins/gotr/potr/crypt.py", line 316, in goEncrypted
    self.ctx._wentEncrypted()
  File "/home/livid/.local/share/gajim/plugins/gotr/potr/context.py", line 313, in _wentEncrypted
    self.setState(STATE_ENCRYPTED)
  File "/home/livid/.local/share/gajim/plugins/gotr/otrmodule.py", line 175, in setState
    OtrPlugin.update_otr(self.peer, self.user.accountname)
  File "/home/livid/.local/share/gajim/plugins/gotr/otrmodule.py", line 521, in update_otr
    ctrl = cls.get_control(user, acc)
  File "/home/livid/.local/share/gajim/plugins/gotr/otrmodule.py", line 535, in get_control
    gajim.get_jid_without_resource(fjid), account)
  File "/usr/lib64/python2.7/site-packages/gajim/common/gajim.py", line 297, in get_jid_without_resource
    return jid.split('/')[0]
AttributeError: JID instance has no attribute 'split'

In case we get XHTML in OTR message for some reason (e.g. from gajim
0.16.4), we will see that instead of decrypted content, if we don't
delete existing html first.

This doesn't touch old code in handle_outgoing_msg (which will get exectued
gajim<0.16.4). That should work between versions,
given handle_incoming_msg will overwrite any XHTML in
OTR-encrypted message.

I.e. whitespace-pattern advertisement

0.9.9

Closes #176

See merge request !13

Fixes #176

1.0.1

Closes #161

See merge request !12

Fixes #161

0.4.3

See merge request !11

It creates Problems with various WindowManagers

Version 0.4.2

See merge request !10

omemo was not assigned before reference
if there was no omemo plugin found

[plugin_installer] Fix automatic update check

See merge request !8

Mpris Bugfixes

See merge request !7

Resolve "Verify TLS certificate of Plugin Server"

Closes #78 

Please note that this adds basic TLS verification (a big improvement over the current status!) but there is still room for enhancement: certificate pinning or CA pining, disabling TLS1.0, and probably some more. I'm leaving those for a separate MR (and probably further discussion)

See merge request !6