vhf/free-programming-books — pull request #641 by gabriellim (2014-01-18 10:50:29+00:00)
Title: Alphabetized and removed duplicate Perl books

Duplicate
* [Practical mod_perl](http://modperlbook.org/) - Stas Bekman, Eric Cholet
* [Practical mod\_perl](http://modperlbook.org/)