[HTML5] Add a hook to run linters agains staged git files

[HTML5] Add support to default system/browser language

[HTML5 Client] Transition from Grunt to NPM Scripts

[HTML5] - Userlist Accessibility Fix

Refactor client

Merge branch 'move-presentation-messages-2x' of https://github.com/capilkey/bigbluebutton into capilkey-move-presentation-messages-2x

Merge branch 'layout-2x-messages' of https://github.com/riadvice/bigbluebutton into riadvice-layout-2x-messages

Meteor's ROOT_URL and HOME variables can no longer be changed in the config file (the npm script needs to be modified instead).