Display moderator icon next to his name in chat messages

Change copyright year in HTML5 client to 2018

Edit css to prevent disappearing close btn background

Fix broken view styles displayed on error, on meetingEnd and for removed users

Tweeked feedback dialog

Implemented "user rating feedback on logout" feature

[HTML5 Client] Fix for Mute/Unmute button's icon update.

Language selector of the application, each option appears in its native language.

[HTML5 Client] Fix for the issue with users disappearing from userlist when hanging up audio.

Corrected a few labels missed in #4929 

Changed all the references of "kick" to "remove"

Update settings-production.json when assigning hostname

Merge branch 'v2.0.x-release' of https://github.com/bigbluebutton/bigbluebutton into hangup-audio-userlist-fix

WebRTC media updates

Change modal settings styles.

Disable webcam button in media column for all users when webcamsOnlyForModerator is on

Merge branch 'v2.0.x-release' of https://github.com/bigbluebutton/bigbluebutton into video-upstream-errors