LPS-36184 Missed this on the backport.  Sync with trunk
SOS-1571 Refactor getLinkURL and getAssetRenderer so can be used by both activity and activitySets
SOS-1571 Create default interpreter for SO activity sets
SOS-1571 Change grouping behavior for wikis
SOS-1571 Abstract out getPageTitle to be used later
SOS-1571 getBody for activity sets
SOS-1571 getLink for activity sets
SOS-1571 abstract out appendNodeTitlePattern to be used later
SOS-1571 abstract out getNodeTitle to be used later
SOS-1571 Title pattern and arguments
SOS-1571 SubFeedEntry for wikis
SOS-1571 URL for showing changes in wiki updates
SOS-1571 Store versions of wikiPages to compare
SOS-1571 Add in view changes link
SOS-1571 Language properties
SOS-1571 Source formatting
SOS-1571 Like a submarine, and not a subMarine
SOS-1571 SF
SOS-1571 Dont use clases from *.service.persistence.* outside of a *LocalServiceImpl or *ServiceImpl
SOS-1571 Use SO activity classes for 6.1.x