merge with orbitalbasis
merged with new recurrences
with working irpf90
working with arbit basis and reading basis etc
change README
working on overlap integrals
Merge branch 'master' of https://github.com/vijaygopalchilkuri/quantumchemistry into recurrences

* 'master' of https://github.com/vijaygopalchilkuri/quantumchemistry:
  merged with new recurrences
  merge with orbitalbasis
Merge branch 'HFSCF' of https://github.com/vijaygopalchilkuri/quantumchemistry into recurrences

* 'HFSCF' of https://github.com/vijaygopalchilkuri/quantumchemistry:
  working on overlap integrals
  change README
  working with arbit basis and reading basis etc
  with working irpf90