[DONE] Remove BBB module and add sipmediagw feature (#1190)

* Removal of the old BBB module (replaced by the meetings module)
* Delete MEETING_WEBINAR_SIPMEDIAGW_URL and MEETING_WEBINAR_SIPMEDIAGW_TOKEN parameters management (replaced by live gateway feature)
* Add sipmediagw_server_url and sipmediagw_server_password to live gateway class (meeting/models.py)
* Manage request URLs from SIPMediaGW server (hashkey with a / before the last 10 characters)

Author: LoicBonavent

.coveragerc

@@ -24,5 +24,4 @@ omit = pod/*settings*.py
        */migrations/*
        pod/recorder/plugins/type_*.py
        pod/*/forms.py
-       scripts/bbb-pod-live/*.*
        pod/live/pilotingInterface.py

.gitignore

@@ -49,7 +49,6 @@ pod/custom/*
 pod/main/static/custom/img
 !pod/custom/settings_local.py.example
 settings_local.py
-scripts/bbb-pod-live/docker-compose.yml
 transcription/*
 
 # Unit test utilities #