Devel branch before merging eloy/mgproton

Merge branch 'devel'. Bumped to 3.44.0

After merge of feature/hmc_mg

Tagging before merging in feature/hmc_mg

Trying to propagate the induced changes from autotools.

Updated gitmodules

Updated submodule

Interface update in test program

Maintenance tag, post QUDA interface changes

Merge branch 'devel'