Merge pull request #115 from vreddy18/master

Fix map settings, add route to footprints page
Catch case where undefined user is called for getUserData
Store checkinID in database
Merge branch 'dev' of https://github.com/gowaddle/waddle into dev
Merge pull request #116 from gitMbar/dev

Store checkinID in database, catch undefined user case for getUserData
Markers clear when toggling between friends