Gigantic pull request to update Krumo to v0.5.0

Notable features:

1. New default skin from @bobdenotter
2. Associative arrays sorted by default
3. Carriage returns are displayed visually
4. Minified all CSS and JS for quicker downloads
5. Add an option to return the HTML instead of printing it
6. Add an option that krumo will open completely expanded
7. Highligh boolean and nulls differently