[#53653125] add map canvas fixes for bootstrap/google map
[#53653125] populate sightings of spimes with getting 'mine'
[#53653125] when doing a spime checkin, stash the checkin in the spime's
sightings array
[#53653125] initial attempt at google maps integration, currently with
mostly bogus data
[#53653125] use correct find to trigger .populate
[#53653125] don't push on null object
[#53653125] spime knows about its last sighting