redoing mp2 related to #4
minor
Merge branch 'zcas_new' into newmp2
minor
runs in parallel but wrong.
implements parallel MP2. Related to #4. Load balancing could be improved, but it should not be too bad as it is.
fixed a bug with scalapack
minor. Still a bit unstable
bug fixed
Merge commit '00fdf71d5a272ae7702626a617932d603f77ab18'