0.4.1

- New params internalServerErrorPage and serviceUnavailablePage.
- New Express variable appName.
- 503 error page now customizable.
- Roosevelt will now supply default error pages for 404, 500, and 503
errors if you don't define your own.
- PUT and DELETE support added via express.methodOverride.
- Fixed broken LESS compiler.
- Fixed command line tool glitch which prevented sample app from
working out of the box.
- Fixed multiple default view file extension support.