2.0.4 had bad defaults and documentation.

Some highlights:

- half baked config (no array. multiple values can be hacked as `foo.bar={a: 1, b: 1}`)

- can only set logging level in the config. and, xml logger config doesn't have application.conf values (logger.* in .conf are useless)

- routes dsl (meh)

- bad db connection pool. it kills all other connections if a connection fails, and goes into error state instead of re-connecting (it does reconnect for subsequent requests when pool is in error state)