Remove default git username and email

This has bitten me more times than it has helped. I'd rather Git warn me
that I'm committing without a username/email so that I'm prompted to set
the correct data for the specific repo.
Alias for New Relic's curl test

New Relic has a recommended curl command for doublechecking their http
response test. If there's ever a false positive they'd like the details.
Update local URL to the Lebowski API
Check that the local Lebowski API is responding

This replaces the simple check that the pow directory is in place with a
check that the API is actually responding to a web request.