Julian Lam 4c2e2f09da Squashed commit of the following:
commit 2b66f7cfccfeb7578b1ebdd6955464a29517566b
Author: Julian Lam <julian@nodebb.org>
Date:   Thu Jan 11 15:22:23 2018 -0500

    chat tweaks on persona and fixing taskbar integration for group chats

commit c4f6735025a981b4591f3d0b82e2897f72e43d4b
Author: Julian Lam <julian@nodebb.org>
Date:   Wed Jan 10 15:12:54 2018 -0500

    ported revamped vanilla chats page and modal to persona, 
..
alerts.less fixed wrong variable use, re:
bottom-sheet.less Fix bottom sheets not showing in IE11
composer-default.less closes https://github.com/NodeBB/NodeBB/issues/4413
cookie-consent.less
fab.less added back follow button to profile page
morph.less use @gray-lighter instead of #eee
nprogress.less move loading spinner to bottom right on mobile
taskbar.less Squashed commit of the following:
usercard.less added back follow button to profile page