formatting app.js
client: queries most recent points
Merge branch 'master' of github.com:integrityapplications/pinz
debugging post query.

and add time js lib
Merge branch 'master' of github.com:integrityapplications/pinz
added db and mongodata dirs to gitignore
Merge branch 'master' of https://github.com/integrityapplications/pinz
add db and mongodata to gitignore
oops - accidentally deleted api.js from git. BAD ANDY
client: added heatmap but needs work on rendering
client: refactored leaflet data structures

now there is an empty layergroup that gets emptied and filled on each draw.
minor
Merge remote-tracking branch 'origin'

Conflicts:
	.gitignore
updating with master