lots of fixes to nwchem convergence and optimization
The last step in NWChem geometry optimization now uses the NWChem default convergence criteria
fixes and NOT tested implementation of Energy() and OptimizedGeometry() for NWCHem
Small fix to OptimizedGeometry() in NWChem
gofmt'd
Merge branch 'hotfix' into nwchem
Better format for the license
Merge branch 'hotfix' into nwchem
Merge branch 'nwchem' into devel