Internal changes.
Removed bug where the more points where not interpolated if curve had been updated after intial local optimization.
Merge branch 'dev' of https://github.com/PetterS/curve_extraction into dev

Conflicts:
	matlab/Curve_extraction.m
Local optimization now throws an error if no curve is stored.
Added test for linprog inside constrained shortest path.
Merge branch 'dev' of https://github.com/PetterS/curve_extraction into dev

Conflicts:
	matlab/Curve_extraction.m