Adds some safety checks for disabled contactlist.

Removing translateString forces using data-i18n attributes, to make sure we do not forget to set them. Missing data-i18n attributes is a problem with late loading where we can end up without translation, without text. Missing data-i18n attributes is also problem that strings will not be translated when changing language.
Fixes a bug in invite dialog, where remove password button was shown for non moderators.

Will disconnect on ConferenceErrors.VIDEOBRIDGE_NOT_AVAILABLE.
Show the same message when either JVB is not available or Jicofo
disconnects.

We pass key which is enough to obtain the title.

Uses some ES6 syntax. Also removes inputHeight key for resolution as it makes no sence to have dictionary with one key. Removes some code duplication. Makes code consistent: method params for updateLocalStats and updateRemoteStats.

Enable ESLint on jitsi-meet with the same configuration and the same
goals as in lib-jitsi-meet.

We initialise the UI for isModerator = false on startup, so we should
not react to the event unless it gets out of sync.

When we receive a conference failed event with reason not allowed we show that page.

When enabled after hanging up redirect to close page, if needed feedback will be displayed.

Moves handling of thank you dialog out of the Promise that handles the feedback and just before we redirect to welcome page.