* Room Roles

* Replace arunoda:streams by rocketchat:streamer

* Getting user roles

* Add stream notifications for adding/removing user and room roles

* Fix event broadcast

* Update version of rocketchat:streamer to 0.2.0

* Call subscribe after adding user to role

* Update rocketchat:streamer to version 0.3.0

* Notify broadcast

* Notify and broadcast as default

* Update rocketchat:streamer to version 0.3.1

* Update rocketchat:streamer to 0.3.2

* Improve broadcast auth

* Fix LiveChat Streamer

Fix for the location in RTL interfaces of the email verification check mark which was added in this PR: https://github.com/RocketChat/Rocket.Chat/commit/2c8ceaeef93cf820eca0670e6fa335c269eb5981

Embedded media like images and video can now individually be collapsed

A new preference "Collapse media by default" is also added, the default
is to not collapse media.

Since images are not always shown, "showImage" is also renamed to
"loadImage"

Closes #1187

A small enhancement to the CSS of word highlighting

Closes #2483

Fix #2605

Added missing css properties for firefox and the standard format to fix some visual issues with dropdown boxes (select tags)

This fix moves the emoji icon to the left side in RTL interfaces

So the the emoji button won't overlap the message: should fix #2566

Moves change of password to profile;
Moves change of language to preferences;
Requires current password to change profile settings;