SOS-1138 Add methods to allow commenting on activity feed
SOS-1138 Display comments for activities
SOS-1138 Comment on assets directly if activity set is only one activity
SOS-1138 Javascript to display new post after its added
SOS-1138 Make comments collapseable
SOS-1138 Javascript for edit and delete buttons
SOS-1138 S/F ActivitiesPortlets.java
SOS-1138 S/F jsps
SOS-1138 SF