Database#<<: don’t return the Signature
clean-up Database#<< spec a bit
bundle update
Settings#tags: don’t blow up on empty tag names
CLI#run: don’t call Settings#tags twice
CLI#run: bad refactoring > no refactoring
CLI: bring in the British
refactor CLI#run even more
factor out CLI#{create_sig_from,retrieve_sig}
CLI#run: don’t spew a stacktrace on ctrl-c
bump version