Some fixes and enhancements to the existing codebase:

- Fixed the behaviour with chunked responses
- Added support for SOAP requests
- Added on-the-fly certificate generation so that all sites appear to be validly signed by the CA.
- HTTPConnection exceptions are now handled by choking with 504 Proxy Error instead than throwing an exception

Still *strictly* necessary before being decent enough:

- Allow plugins to mangle post requests as well
- Remove the Big Lock on cert generation
- Debug the (too frequent) HTTPConnection errors
- Better configurability
- setuptools ready
- get a better cli options handling

Nice to have:

- proxy console
- daemonization
- log to syslog