It was moved to js-utils, so make use of it.

* Removed unnecessary string wrapping

When a native iOS module implements `constantsToExport` it must define
`requiresMainQueueSetup`. In this case we don't do any UI stuff so it doesn't
need to be initialized in the main thread.

Make sure both methods offer the same behavior and mark the old one as
deprecated so SDK users get a warning.

Fixes too many open files.

This involves redesign of the web recording dialog in order to look the
same as the mobile one.

- Change "features/chat" to support listening for new chat messages
  and storing them, removing that logic from conference.js.
- Combine chat.scss and side_toolbar_container.css, and remove unused
  scss files. Chat is the only side panel so the two concepts have
  been merged.
- Remove direct access to the chat feature from non-react and non-redux
  flows.
- Modify the i18n translate function to take in an options object.
  By default the option "wait" is set to true, but that causes
  components to mount after the parent has been notified of
  an update, which means autoscrolling down to the latest rendered
  messages does not work. With "wait" set to false, the children
  will mount and then the parent will trigger componentDidUpdate.
- Create react components for chat. Chat is the side panel
  plus the entiren chat feature. ChatInput is a child of Chat and
  is used for composing messages. ChatMessage displays one message
  and extends PureComponent to limit re-renders.
- Fix a bug where the toolbar was not showing automatically when
  chat is closed and a new message is received.
- Import react-transition-group to time the animation of the
  side panel showing/hiding and unmounting the Chat component.
  This gets around the issue of having to control autofocus if the
  component were always mounted and visibility toggled, but
  introduces not being able to store previous scroll state
  (without additional work or re-work).

Recent Ubuntus come with only main repositories enabled. See #3427.

This reduces 'xcodebuild' verbosity and fixed problem with exceeding 4MB
of logs size imposed by Travis CI.

deps: update lib-jitsi-meet dependency

This is a workaround suggested by Travis support to workaround the
"The job exceeded the maximum log length, and has been terminated."
error.

Another option would be to upload the logs somewhere, but actually it
might be more convenient not having to scroll down all those logs. We
can revisit this case if some problems will be encountered (like for
example if there's need to see something in the middle).

The code for handling device availability has been disabled for a long time,
plus it's ill named since it represents 2 abstractions: lack of permissions and
lack of devices.

Time for it to rest in the git graveyard.

chore: Updates lib-jitsi-meet to 615934a78a…

* feat: Displays the server region in the stats panels.

* feat: Displays the server count in the local stats panel.

* ref: Renames a variable.

* fix: Makes bridgeCount a number, clarifies docs.

* chore: Updates lib-jitsi-meet to 1ac6df97e3.

There are (at least) two changes that are breaking:
- defaultTab is gone
- The re-rendering logic looks to have been re-written so that
  passing in a new array of tabs causes a re-render, which can
  reset the currently selected tab.

The fixes involved removing defaultTab from each tab configuration,
as it is no longer respected anyway. Also, instead of letting Tabs
be uncontrolled and allowing it to set its own selected, which
would result in the first tab automatically being selected on
Tabs re-render, use Tabs a controlled prop to dicate which
tab is selected; this is accomplished by specifying a selected
prop.

This is a pre-requisite to updating atlaskit/tabs to 8.0.8.
Without updating, clicking a dropdown menu within a tab
component within a modal, such as the language selector in
the settings dialog, will lock the browser.

feat(recording): Add analytics.