Fabfile general

[PonteIneptique]

• Rollback
• Symbolic link for prod and stage
• Apache2 site config if needed ? (@balmas Should I take care of that ?)

[PonteIneptique]

To deal with configuration, prod and stage should both have a symbolic link for configurations folders.
Fab would remove configuration folders after installing and ln -s to the configuration folder setup for the each Blueprint/App ->
Ahab Conf
Perseids Client App conf