Log Message:
Update ruby-extlib to 0.9.16.

Jan 08, 2013

* Bumped version to 0.9.17
* Regenerate gemspec for version 0.9.16
* Remove symbol coercion from the XML parser
* Remove yaml coercion from the XML parser
* Upgrade jeweler gem dependency ...

 Feb 19, 2011

* Updated Rakefile to use jeweler 1.5.2