[UP-4275] Add documentation to help distinguish between name/title.  Fix...

...ed title in site map link so it is consistent.   Add tooltip to the customize gallery to display 'name' and 'fname'.

https://issues.jasig.org/browse/UP-4275

This is just a stop-gap that fixes 1 real issue (sitemap uses name instead of title), 1 small tweak (add tooltip w/ name in customize) and a few comments.   The real fix should be done as part of https://issues.jasig.org/browse/UP-4283