[grid.part.local.indexbased} rework Traits to match dune-fem, refs #2
[default] use dune-fems LeafGridPart, refs #2
[factory.default] updated grid part creation, refs #2
remove obsolete files once copied from dune-fem
[indexset.local] remove outdated include
[factory.default] update includes
[test.provider] fix unsafe ineter conversion
[cmake] add alugrid