Prevent ejected users from rejoining

 - track ejected user based on external userid. If user rejoins with the same external
   userid, fail the validate token.

Set content-type for presentation download

Update HTML5 npm packages

Pulled HTML5 locales April 17, 2020

add support for upload of '.jpeg' files (not just '.jpg')

apply previously merged PR #9025 into v2.2.x-release

Display screen share button in safari browser

Fix presentation download by using the presentation id not its name

Remove dangerouslySetInnerHTML from captions

Bump up release to 2.2.4

Fix maximum update depth exceeded in poll annotation

Strip control characters from user-provided metadata in events file

Pulled HTML5 locales; Fixed Georgian issues

By keeping ka.json uncommittable I can refrain from adding edge case handlers

Had to jump through hoops to add Georgian because Langmap does not have entry for 'ka' just for 'ka_GE'

bump release

Have the recording archive delete originals of archived media

After the last segment of a recording has been archived, it is safe to
delete the original files that were recorded by the various media
handling components. This patch deletes the freeswitch audio files and
kurento webcam/screenshare files after they have been archived.

It needs to be used in combination with some changes to users/groups and
directory permissions to allow the `bigbluebutton` user to delete files
that it could previously only read.

Update to not use full paths

Fix render loop after changing locale with override setting