redding/assert — pull request #112 by kellyredding (2013-02-15 21:53:46+00:00)
Title: handle and apply ENV settings

This updates the initialization to honor env var settings. Right
now, runner_seed is the only setting driven by an env var.

I chose to remove the boolean options from the env settings b/c
of difficulty in parsing and the ambiguity in handling the values
parsed. Ultimately it's easier to just use the flags anyway. We
can always handle them at a later time.

Closes #98.
Closes #99.

@jcredding ready for review.