* Chi files are no longer added to the library, the code will search for them itself to prevent unnecessary clutter. Will provide the option to add chi files to the library (off by default)
* file location is back! If it's left empty, it will use the default upload folders instead
* Changed the way data is fed and handled by the php and js script
This is a release update.

* Some code clean-up and commenting.
* Chibipaint has its own menu, complete with an options and help page.
* Fixed an issue where editing images with uppercase letters would generate a new attachment in the media library
* Added default dimensions to the options page
* Some redundant code between cbp_results and cbp_save added to cbp_common (because there aren't enough files in this plugin already)