update md.gmx module
update state module
update stream module
update scripts._gmx_add module
update scripts.init module
update scripts.mdq module
Merge pull request #26 from badi/pxul

Use pxul for utilities
cleanup
Merge branch 'master' into bugfix

* master:
  cleanup
  update scripts.mdq module
  update scripts.init module
  update scripts._gmx_add module
  update stream module
  update state module
  update md.gmx module