fitme.parHF is now being updated, so that epsDensity2 will be used to avoid re-initialization of density matrices
model3.E2 now does full trace over density matrix
model3.E2fast is the older method that works only if HF was solved for these paramters
model3.modelCalcParallel uses E2fast if density was recomputed, and E2 otherwise
Merge branch 'master' of git@github.com:djyaron/msqc.git