redding/scmd — pull request #17 by kellyredding (2013-10-16 04:36:25+00:00)
Title: have `RunError` *optionally* take a custom backtrace

This updates the RunError custom exception to be optionally created
with a custom backtrace. If none is provided, it falls back to the
`caller`. This makes it behave like any other exception class.

Closes #15.