Merge pull request #21 from jonboulle/master

fix(locksmithd): shut down more cleanly while etcd is unavailable
bump(version): v0.1.4
bump(version): v0.1.4+git
CONTRIBUTING: remove the subject verbs

After talking to a few people on the team we have decided that the
feat/fix/etc tags aren't adding much value. Use a simpler format
instead.
CONTRIBUTING: add a section about not emailing maintainers

Setup some expectation for etiquette.
MAINTAINERS: add initial maintainers file