Khan/khan-exercises — pull request #6148 by smenks13 (2011-11-12 03:10:09+00:00)
Title: Line relationships: Add problem type

I closed the old pull request, and modified the existing Line relationships exercise. I had to move some things around in order to incorporate it. Sorry if I interfered with the old problem types, I think they're intact though. I believe the pastel colors are a little harder to see, but if the consensus is they can still be read, cool by me. I made all the changes you requested @marcia, but let me know if you spot anything else. Thanks again!