MPI bug fix with non-blocking send/recv
refactored parallel driver to allow compute of local LHS while nonlocal communicating
removed some duplicated work in parallel calc; NOTE changed rotationmat.C back so that states are discarded as usual
removed some duplicate work in parallel calculation; but crashes with on-disk build in c2_d2h...
fixed bug fix for disk-based non-duplicated parallel run (lhs or rhs broadcast)
Removed some redundant calls to expectation engine in parallel calcs
merged to remote branch