Merge pull request #26 from agricocb/master

A batch of 13 commits covering POI filtering and Disc Golf holes
Merge pull request #27 from agricocb/master

Another batch of commits from the last day of work in my private repo
Merge pull request #28 from agricocb/master

My last set of cleanup changes before the CS Fair presentation
Merge pull request #29 from agricocb/master

Integrated a few last minute icon updates from Grace
Move Filter access from map button to Menu screen

Based on user testing experience at the CS Fair, Grace suggested that it might
make sense to move the Filter button off of the map screen and instead add it
to the Menu page.  This is that change for evaluation by the group.
Merge pull request #30 from agricocb/move_filter_access_to_menu

Move Filter access from map button to Menu screen