Introduce the beginnings of an ssh app.
Review Request #3404 — Created Oct. 7, 2012 and discarded
Introduce the beginnings of an ssh app. This introduces an ssh app, for the purposes of organization. Right now, it just consists of the original sshutils.py (renamed to ssh/utils.py). Future changes will flesh this out more, in an attempt toward a more standardized interface and DB-backed key storage.
All unit tests pass.
