Fixing static references to localhost:3000.
Merge pull request #8 from jmervine/master

Cleaning up Makefile, port handling, static url refs.
Refactoring Pagespeed errors.
Merge branch 'master' into pagespeed_error_handling
Fixing default ps key.
Removing persistent error state incase googlespi fails.
Adding some basic unit tests.
Resetting error status to false if no errors to allow for recovery.
Adding safe flag to mongo setup to get ride of warnings.
Centralizing database connection. No only makes one.