Add color log output for debug, warnings, and errors.

Review Request #7716 — Created Oct. 20, 2015 and submitted — Latest diff uploaded

Information

rbpkg
master

Reviewers

This makes use of the third-party colorlog module to add color to some
of our log types. We only do this when outputting directly to a
terminal.

Tested the different log types when outputting to a terminal and when
outputting to a log file or less. Saw the color only in the terminal
case.