TODO:
add test cases for:
-color import
-different line styles
-...

This needs proper fix. It wasn't noticed because it was created by pipe
before afd5eb1f and last command
succeeded, so make continued even if compilation failed.

There is a reason for that dependency. I will have to come up with
something better later.

to be used for generated headers which are not delivered to solver.

First a color is set , then another color is set .We finally check again by issuing an undo and checking if the prev color is now set

this boost::ptr_vector idea is seriously broken

Especially given it's not namespaced (const is automatically static).