Reflect change from global to local numbering of dofs in DofMap.tabulate_all_coordinates
Added unit test of DofMap.tabulate_all_coordinates
Fix issue with jit compilations on different mpi groups
More fixes for mpi_comm world and jitting.
 -- Still need some tests...
Small code fixes in DofMap bug fix branch.
Improve support for mpi groups and jit compilation.
  -- We need to initialize PETSc manualy for this to work
Remove old test in test_jit.py
Merge branch 'johanhake/mpi-group-support-in-jit_compilation' into next
Merge branch 'oyvinev/fix-tabulate-all-coordinates' into next
Merge branch 'next' of bitbucket.org:fenics-project/dolfin into next