0.5.0:
 - Client properly reports timeouts as error
 - "Socially deprecate" woven
 - Fix memory leak in _c_urlarg library
 - Stop using _c_urlarg library
 - Fix 'gzip' and 'bzip2' content-encodings
 - Escape log entries so remote user cannot corrupt the log
 - Commented out range support because it's broken
 - Fix HEAD responses without content-length