google maps is now an angular dependency too
tentatively adding firebase stuff
adding Turtle service
refactored map away

now  we only have the canvas directive that's using a map overlay service for overlay tricks
entities now do something useful; also, straight segment is gone, not it is called track"
remedial
removing ngResource again
adding tests for the Turtle#fromDump
carving up space for the outline pane, some shuffles wrt styles