submit1 now usese O1 optimization
submit2 now usese O2 optimization
submit3 now usese O1 optimization plus openMP
added posibility to choose preferred editor in apply_DAMASK_modifications
which LAPACK installation is used can now be selected by switching on IKML, ACML, or LAPACK path (in that order of preference)
(multiuser environments now need to have system-wide installation locations for those libraries, since run_*_marc scripts are set once and for all to use them.)