As a Portlet Developer, I want to be able to generate portlet URLs in the activitiy feed of my entities

Right now, developers need to hardcode absolut URLs since generating portletURLs is not possible.

The current

protected SocialActivityFeedEntry doInterpret(
SocialActivity activity, ThemeDisplay themeDisplay)
throws Exception {

should be removed and

protected SocialActivityFeedEntry doInterpret(
SocialActivity activity, ServiceContext serviceContext)
throws Exception {

should be used.