Added readme.md
Update formatting in readme.md
Fixed a typo
Added UT framework
tee doesn't inherit piped process return value
Implemented Line2::intersectWithRay
Corrected intersectWithRay, so it only checks in the positive direction
Factored Line::intersect* functions out of class scope
Implemented Track::collideWithRay

Also added getDistance and getDistanceSQ to mathUtil
Added and drawing ray sensors for the car
Merge remote-tracking branch 'petersohn/master'

Duplicated code has to be factored out

Conflicts:
	src/Line2.hpp
	src/Track.cpp
	src/Track.hpp
Factored out duplicated code caused by the merge