Settings for server default language 

Channel settings

* master:
  Add Scalingo Deploy button
  Configure LGTM approvals
  New MAINTERRS

* lingohub:
  Created and pushed by LingoHub. Project: 'Rocket.Chat' by User: 'gabriel.engel@gmail.com'.

Conflicts:
	packages/rocketchat-livechat/i18n/en.i18n.json

# By Marcelo Schmidt
# Via Marcelo Schmidt
* 'develop' of github.com:RocketChat/Rocket.Chat:
  Fix #1709 hide mentions for edited messages when keep history is enabled

Update from develop to create version 0.10.0

add trailing slash on ROOT_URL for livechat installation script

needs a slash, else url will look like this:
`j.src = 'https://domain.tldpackages/rocketchat_livechat/assets/rocket-livechat.js';`

Conflicts:
	packages/rocketchat-channel-settings/server/methods/saveRoomSettings.coffee
	packages/rocketchat-lib/server/models/Rooms.coffee
	packages/rocketchat-ui/lib/RoomManager.coffee
	server/startup/roomPublishes.coffee

Fix pin and star

Fixed several english issues in the Incoming Webhooks settings page

Support Integration webhook calls originating from client browsers

Add the ability to set the default language for new users.
Admin can set server default language in admin/General section.