Big (>10k LOC) Ajax CI App Open Sourced

[eluser]renownedmedia[/eluser]
Hi Ya'll,

I just open sourced a big CodeIgniter App (has about 11,000 lines of code).

GitHub: https://github.com/tlhunter/neoinvoice
Screenshots/Video: http://thomashunter.name/blog/neoinvoice-post-mortem/

Feel free to tear it apart. It is released under a dual GPL/BSD license.

I started the app about 2 years ago, and stopped development about 6 months ago. The app is entirely AJAX based. The version of CodeIgniter it uses is 1.7.2. It requires MySQL and a caching mechanism (either APC or Memcache, thanks to Multicache).

The code isn't great by any means (please don't reply with reasons why it sucks), but it does show off a large CI project. I remember it being hard to find large Open Source CI projects when I started development, I'm not sure if they are still rare. There are plenty of bad practices, and I would love to accept pull requests to fix them.