Release Name: 0.2.2

Notes:
PDF::HTMLDoc is a wrapper around HTMLDOC, an open-source application
that converts HTML input files into formatted HTML, PDF or PostScript
output.


Changes:
0.2.2
* Move source code to GitHub: http://github.com/craigw/htmldoc
* Strings that have linebreaks in are probably not URLs.
* If a string has a line starting what matches /https?:\/\/ it's not an 
  URL, it's a string.

0.2.1
* Fixed a bug in set_option where the value false would be seen as nil instead of :no