Explicitly handle None in client pipe
Merge pull request #41 from dimrozakis/die_hard

Die gracefully
Merge branch 'master' into processor

Conflicts:
	bucky/main.py
Make processor tests a bit more robust
Raise NotImplementedError properly in processor
Merge branch 'processor' into mistio
Merge branch 'misc' into mistio
Merge branch 'cd_relax_gauge_derive' into mistio