Revert deletion of fabfile.py
Revert deletion of fabfile.py

It seems that we still have some scripts/processes using this file, so
I'm temporarily restoring it.

recklessromeo/otm-core,recklessromeo/otm-core,RickMohr/otm-core,RickMohr/otm-core,maurizi/otm-core,maurizi/otm-core,clever-crow-consulting/otm-core,recklessromeo/otm-core,clever-crow-consulting/otm-core,RickMohr/otm-core,maurizi/otm-core,clever-crow-consulting/otm-core,maurizi/otm-core,clever-crow-consulting/otm-core,RickMohr/otm-core,recklessromeo/otm-core