CERN version

Signed-off-by: Adrian-Tudor Panescu <adrian.tudor.panescu@cern.ch>
bashrc: new Invenio exports

Signed-off-by: Adrian-Tudor Panescu <adrian.tudor.panescu@cern.ch>
gitconfig: removed unused remotes

Signed-off-by: Adrian-Tudor Panescu <adrian.tudor.panescu@cern.ch>
invenio-demosite helpers

* bash alias for easy cd in virtualenv;
* git remotes.

Signed-off-by: Adrian-Tudor Panescu <adrian.tudor.panescu@cern.ch>