Puppetize /home/tstarling/.bashrc

Managing personal configuration in an environment where you have
accounts on many servers with $manage_home is a nuisance. Hopefully it
will become more of a nuisance over time, as ops team members slowly
transition from doing everything as root to having and using their own
accounts.

The contents of the file is just a slightly cleaned-up version of my
current tin .bashrc.

Change-Id: I7794accc894dd73fe11d3d3fa5fe30f346c6a5f4