We need to increase the length of the voice conference. If we have lots of meetings running,
 there is a high chance of collision.

 Need corresponding changes to FreeSWITCH dialplan.

 In bbb_echo_test.xml, change to `expression="^echo(\d{5,11})$"`.

 In bbb_conference.xml, change to `expression="^(\d{5,11})$"`.

 Do not ban users ejecting self from meeting

 Some users join with multiple browsers. When user is ejecting self from one browser,
 do not eject all sessions for that user and do not prevent them from rejoining.

 Keep track of banned dial-in callers

 When a dial-in caller is ejected from the meeting, keep track of the callerid number.
 When the same callerid number rejoins the conference, eject the caller.

Pulled HTML5 locales April 23, 2020; Added Norwegian

 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