small reshuffling of internal ABM code, removed apsolve, fixes XFITTER-44
small reshuffling of internal ABM code (XQGX1 moved from apsolve.f to cq.f which is used by BMSN), removed apsolve.f (code checked)
small reshuffling of internal ABM code (XQGX1 moved from apsolve.f to cq.f which is used by BMSN), removed apsolve.f (code checked)