Merge master into feature/stabilization.
SOC-3994: [IE] window.location.origin return undefined on IE .
SOC-3965 | SyntaxError popup when click on View/hide comments.

Fix description: Correct jm.addJavascript call in BaseUIActivity class.
SOC-3952 | CLONE - My activity stream is broken

Fix description: do not render activity if there are some properties missed.
SOC-3835 | CLONE - [integ-forum] WARN: Failed to find registered message bundle keys

Fix description: remove warning message about failed to find registered message bundle key for titleId.
SOC-3538: Support shindig configuration externalization

Fix description
	- Use eXo class to read shindig features list
SOC-3921 Use jquery wrongly on space page

Fix description:
	- Correct alias for jquery
SOC-3929 | RequestLifeCycle is not managed properly in Social source code.
SOC-3891 | [Migration] Failed to comment on an activity from Platform 3.5.
SOC-3556 | Show 'The target block ID to update is not found : UIComposer' when switch view mode with  User Activity Stream Portlet
Merge feature/stabilization into master