fix NEURON easyblock, make dt_pylibdir function available in pythnonpackage module
squeeze in numpy bug fix as well
DOLFIN python tests sometimes 'hang', so limit their runtime
fix indent
exclude DOLFIN's Python tests for now
exclude *all* DOLFIN Python tests for now
Merge pull request #161 from boegel/neuron

fix bug in NEURON/numpy/DOLFIN easyblocks + refactor Python package easyblock