bbb-web: Escaped strings used in freemarker template for thumbnails

record-and-playback: No thumbnails for default presentation

record-and-playback: Removed preview extension (thumbnails) from recordings when only has default presentation

[HTML5] Refactor of Meetings API

Added flag to config.xml to enable/disable the visibility of the Record option

Remove /tmp/tmp.XXXXXXXX file created by bbb-record

Remove some unnecessary logging

Fixed stream to streams (syntax error in bbb-config)

 - updating latest locales except for zh_TW as it's failing to compile.

Move client breakout rooms configuration to a new node and added a new option to enable/disbale recordings for breakout rooms.

Update to bbb-conf for --check, --stop and --start

record-and-playback: Encoded text coming from the slide for being use…

 close port test connection right after test. 

   user leaves the meeting.

HTML5 audio plus stun request

Lower SWF conversion threshold from 2500 to 2000 for text objects.

 - getmeetinginfo is throwing exception

remove defunct connection when client auto-reconnects.

* master: (22 commits)
  - fix check for breakout room  - insert breakout metadata into events.xml  - delete breakout metadata from redis
  Rename meteor method on the client
  HTML5 - fixed linebreak with lint
  HTML5 - fixes fullscreen toggle to un-fullscreen
  Monitoring for number of user is not triggered for breakout rooms.
  Updated bbb-record rules to detect recording directories.
  Added new property redirectOnJoin to CreateBreakoutRoomsRequest.
  Added redirect property to RequestBreakoutJoinURL.
  Fix handler for 'get_whiteboard_shapes_reply' not calling the cb
  Store breakout meeting info in redis under "meeting:breakout" key instead of "meeting:info"
  Using blank-presentation.pdf as default breakout room presentation when no current presentation is set to the parent room.
  Re-enable recording option for breakout rooms.
  Store breakout room externalMeetingID to be used for generating join URL.
  Store breakout room sequence in akka-apps and bbb-web.
  Revert replacing the deprecated shaHex DigestUtils by sha1Hex and updated API controller.
  Deleted unused imports from bigbluebutton-apps and bigbluebutton-web
  Replace the deprecated shaHex DigestUtils by sha1Hex.
  Send sequence number when creating breakout rooms and correctly generate a unique externalMeetingId for breakout rooms.
  Breakout rooms are now sorted by their sequence number.
  Added sequence property breakout room.
  ...

[HTML5] Refactor of RedisHandler and Chat API

Conflicts:
	akka-bbb-apps/src/main/scala/org/bigbluebutton/core/apps/BreakoutRoomApp.scala