Devel

Regular merge of devel to master. Basic checks were done with different options ( no/with lhapdf, applgrid ) seem to work fine.

Rebase of devel is however problematic for some reason. An easier solution is to delete devel after merge and start it from master.

Next merge of devel to master is planned on a month time scale. Re-base of devel will be more regular (after each merge to master).