Optimization are allowed to fail silently

[Jan Blechta]

There is try-except clause allowing optimizations to fail silently thus hiding eventual errors/bugs to developer.

In the case of emergency we can keep the try-except for legacy representations but it would be better to be more explicit with new representations.

[Jan Blechta]

Note of pulp.solvers.PulpSolverError: PuLP: cannot execute glpsol when there is not glpsol command (Ubuntu glpk-utils package).

[Prof Garth Wells]

@blechta I suspect that the try-except can be removed without any adverse effects for users. It's probably a left over from FErari.

[Jan Blechta]

Ok, thanks for the hint. Will try it.

[Jan Blechta]

Fix ready in https://bitbucket.org/fenics-project/ffc/branch/jan/fix-issue-136.

[Jan Blechta]

Fix in 6b64700..ccbc45e