LPS-48404 don't index root classPK for KB articles

If present, the search portlet uses the root classPK to generate
URLs. KB uses the parent article as a root classPK, which makes the
search portlet redirect users to the wrong article (the parent).
LPS-48146 keep the property unset by default
LPS-48146 Hey guys, are you sure this works, setting it to blank? Won't that still default to 0? I'm looking at the logic from GetterUtil and it seems to me that's what it should do.
LPS-48182 Submitting instance index to view page
LPS-48182 Retrieving time from selected instance
LPS-47812 Deleting calendar booking instances based on their indexes
LPS-47812 Updating calendar booking instances based on their indexes
LPS-47812 SF
LPS-47812 I don't think we usually deprecate for plugins
LPS-47812 Regenerate
LPS-47812 Don't use deprecated API?