bake-0.2: Continuous integration system

Bake is a continuous integration server, designed for large, productive, semi-trusted teams.

• Large teams where there are at least several contributors working full-time on a single code base.
• Productive teams which are regularly pushing code, many times a day.
• Semi-trusted teams where code does not go through manual code review, but code does need to pass a test suite and perhaps some static analysis. People are assumed not to be malicious, but are fallible.