work work
Massive overhaul

Data verification is now based on JSON Schema
Interaction with the sign now happens in a separate Process, with a
message queue
Added small max size to active collection
Fixed send typos
Actually start the SignInteractor process
Fixed labels to be an iterator in make_objects
Added debug prints
Added various prints
Fixed typo in flag parsing
Updated HTTP date

Added support for 'previous'
Stuff
Fixed code type
No longer tries to return last_updated on GET
label_map now filters correctly
Blah
Fixed last_displayed query
Removed traceback forwarding
Fixed previous
Moved sign controller to a package
All the refactoring