Merge pull request #2 from ic-hep/gitInstallDIRAC

Create pilot command for cloning DIRAC installation less externals from
Revert "Create pilot command for cloning DIRAC installation less externals from"
Merge pull request #3 from ic-hep/revert-2-gitInstallDIRAC

Revert "Create pilot command for cloning DIRAC installation less externa...
fix revert conflicts