Merge branch 'develop' into rocketapp

...essage-read-receipt/server/api/methods/getReadReceipts.js

package-lock.json

package.json

packages/rocketchat-api/package.js

packages/rocketchat-api/server/v1/chat.js

packages/rocketchat-api/server/v1/emoji-custom.js

packages/rocketchat-autolinker/client/client.js

...ges/rocketchat-custom-oauth/server/custom_oauth_server.js

packages/rocketchat-lib/package.js

packages/rocketchat-lib/server/oauth/facebook.js

packages/rocketchat-lib/server/oauth/twitter.js

packages/rocketchat-livechat/imports/server/rest/messages.js

packages/rocketchat-livechat/imports/server/rest/users.js

packages/rocketchat-livechat/imports/server/rest/visitors.js

packages/rocketchat-livechat/server/api.js

...etchat-theme/client/imports/components/contextual-bar.css

...-theme/client/imports/components/sidebar/sidebar-item.css

...s/rocketchat-theme/client/imports/components/userInfo.css

...ages/rocketchat-theme/client/imports/general/base_old.css

packages/rocketchat-ui-flextab/client/tabs/userInfo.html