PETSc 3.5.1 with intel 2014b

Plus dependencies
Needs https://github.com/hpcugent/easybuild-easyblocks/pull/446
and https://github.com/hpcugent/easybuild-framework/pull/987


but DOLFIN and FIAT have moved to bitbucker, so the problems seems under control. Maybe change the template url to without ```.x```?