location markers from sample, sample updated to pipes from foursquare.
load locations from real pipes service
Merge remote-tracking branch 'origin/frontend'
add locations selection list (green)
unselect selected item
draw polyline between selected locations
make traveling salesman solver's api more flexible
Merge remote-tracking branch 'origin/master' into frontend
use geoplanned to draw optinal route
Merge branch 'frontend' into gh-pages