Logging utility methods in Config.
Docs docs docs
Tweak some logging configuration options.
Loggable module for consistent logging.
Log a bunch in the QueueReader.
Forgot the Log4r:: bit.
YARD docs look better with a trailing #.
Don't make the Config environment a parameter.

It just gets confusing.
Default tests to 'test' environment.

Via environment variable this time, and allowing overrides.
Merge pull request #4 from rackerlabs/logging

Logging and logging configuration structure.