Decode HTML entities in link metadata

Add sandstorm powerbox sharing

Remove dot from message _id on imported messages

Fix attachments under Sandstorm

room type filter doesn't have label

- Add ability to livechat customers to close the chat session
- Send data to CRM on any livechat edit action
- Add new livechat callbacks: `livechat.saveGuest`, `livechat.saveRoom` and `livechat.saveInfo`
- Rename livechat callbacks:
  - `closeLivechat` -> `livechat.closeRoom`
  - `sendOfflineLivechatMessage` - `livechat.offlineMessage`
- Rename method `livechat:saveLivechatInfo` to `livechat:saveInfo`
- Save CRM returned data
- Add option to override the input box template

* Give SlackBridge the option to use a (formatted) alias for imported messages.

* Give incoming bot messages an alias to match the username of the bot on Slack.

* Add Sandstorm activity/notification events

* Update meteor-spk version

rocketchat:ui-login misses dependency to rocketchat:assets

Changes to the assets were not getting picked up on the login page.

Changed font-family to use native UI font stack

* added name/link of channel/room in email notifications

* added semicolon

* Site_Name removed from Offline_DM_Email and Offline_Mention_Email i18n files

* site_name removed from the email body

* added button go to message

* added message link in en.i18n

If this is not set, TAPi18n fetches `/tap-i18n` (maps to packages/rocketchat-lib/i18n directory).
It should fetch `/subfolder/tap-i18n`.

The processSubtypedMessage function did not return the crafted mgsObj when the
subtype was a bot_message. As a result, saveMessage ignored messages that
originated from bots.

Hide user admin controls except for in admin panel

* Rename gitlab to custom oauth in custom oauth package

Signed-off-by: Patrick Uiterwijk <patrick@puiterwijk.org>

* Allow selection of custom scopes for custom oauth2

Fixes: #3429
Signed-off-by: Patrick Uiterwijk <patrick@puiterwijk.org>

* Less spartan expiry time for Amazon S3 download links.

* Add URL expiry timespan to Amazon S3 URLs