EllisLab/CodeIgniter — pull request #630 by kreitje (2011-10-27 22:04:07+00:00)
Title: Updated system/core/Common.php to ucfirst the class name.

Some systems have an issue with the file names being capitalized.

http://codeigniter.com/forums/viewthread/202941/
http://codeigniter.com/forums/viewthread/202929/