* Fixes inviting more than one participant.

* Shows a notification when participants are invited.

* Adds support for both .id and .user_id props for people query results.

This was hit on a corner case when ConnectionService will deny
the request to start the call. I am not sure, but it could have been
that the conference object has been disposed or closed or something
else, but the fact is that 'conference.room' was not defined and things
crashed. It is not safe to access conference's private field 'room'. It
is true JitsiConference doesn't follow the practice of marking this
field as private with the underscore '_', but it is not a public field.

* Configurable (sub)optimal and unsupported browsers

* maybe this helps somehow

Also, use the helper function to get the display name for a participant.

In case wrong props are passed in, such as pointing to
an index that does not contain a value in the tabs
array.

* Updates kick showing who kicked us.

* Notify participants that someone was kicked.

* Shows notification to user who is remotely muted.

* Updates the notification type.

* Muted by notification for mobile.

* Moves code to react and adds the kick notifications to mobile.

* Updates lib-jitsi-meet.

* Updates start silent, turning on startWithAudioMuted and few UI tweaks.

Disabled mic unmute button and removes remote participants volume slider.

* Adds analytics for start silent.

* Removes extra semi colon.

* Updates lib-jitsi-meet and updates meeting info text.

Checking if the calendar support in the reducer is not only useless but wrong,
since we don't have access to the entire store (the calendar support is checked
in the base/config feature). If calendar support is not enabled the actions
being reduced won't be dispatched anyway, so no harm is done by removing the
check.

When the video unmute button disabled audio-only, also unmute video. This fixes
a weird case in which the user need to "unmute twice" if they were muted beofre
they enabled audio-only mode. That's ok if the audio-only button was used, but
not if the video-unmute button was used, since the expectation is to have video,
of course.

At the moment it includes:

- display name
- email
- avatar URL

This information is used *only* if no token was specified.

The welcomePageEnabled and pictureInPictureEnabled props on mobile have been
converted to feature flags.

If audio-only was engaged, use the video (un)mute button to disengage it. This
should simplify the flow for getting back to video.

Re-structure the custom routing to split between
platforms instead of between intended route features.
This made it easier for me to understand where to
do the checks for unsupported browser after deep-linking
had been checked.

If a value is not set in localStorage then null is
returned. null should not be converted to an empty
string (via _.escape) because that will then be
stored in localStorage as the user set preference
and will keep overriding any other values set
in localStorage for the displayname.

They may contain sensitive information.

- Use actions to notify the rest of the app that
  a mic or camera error has occurred
- Use middleware to respond to those notifications
  of errors by showing in-app notifications and
  notifying the external api