SOC-4493 | Click on document in activity stream
SOC-4494 | Activities show in Activity Stream without connections
SOC-4495: [User Search] Unicode display of accent characters

Problem analysis:
* When translations are used for JavaScript variables or HTML attributes, they must be escaped.
  Abuse of escaping causes however unicode display.

Fix description:
* Remove escaping when the translations are not used for JavaScript variables or HTML attributes.
* Remove obsolete labels.
SOC-4456 | [Unified search] Cannot search with special characters
Websocket - Social
Websocket - Social
Websocket - build message
Integrate vertx into the notification web
Remove javax.websocket dependency
Build new template for intranet notification - ActivityMentionPlugin