0.05  Mar 08, 2011
  - properly escape regexps

0.04  Oct 13, 2010
  - handle empty content-type header

0.03  Oct 08, 2010
  - handle all response types by using response_cb

0.02  Jul 28, 2010
  - added option to set the highlight text in a callback

0.01  Jul 25, 2010
  - initial release