Merge pull request #1682 from RocketChat/improvements/detect-gm

i18n/en.i18n.json

i18n/pt.i18n.json

lib/fileUpload.coffee

packages/rocketchat-file/file.server.coffee

packages/rocketchat-file/package.js

packages/rocketchat-lib/package.js

packages/rocketchat-lib/rocketchat.info

packages/rocketchat-lib/server/functions/settings.coffee

packages/rocketchat-lib/server/models/Settings.coffee

packages/rocketchat-lib/server/startup/settings.coffee

...tchat-message-attachments/client/messageAttachment.coffee

...ketchat-message-attachments/client/messageAttachment.html

packages/rocketchat-oembed/client/oembedImageWidget.html

packages/rocketchat-oembed/client/oembedVideoWidget.html

packages/rocketchat-theme/assets/stylesheets/base.less

packages/rocketchat-ui-admin/admin/admin.html

packages/rocketchat-ui/lib/fileUpload.coffee

server/methods/setAvatarFromService.coffee

server/startup/avatar.coffee