SOC-3959: Social Widget doesn't have latest Activity Stream

Fix description: use getActivitiesOfSpaceWithListAccess method to get lastest space activity. Update eXo logo image.
SOC-3965 | SyntaxError popup when click on View/hide comments.

Fix description: Correct jm.addJavascript call in BaseUIActivity class.
SOC-3994: [IE] window.location.origin return undefined on IE

Fix description:
	- Do not use window.location.origin from webkit, use global one instead