I was looking for some information myself and figured I'd save someone some time if I posted it here. There's lots of good information in there, classes and how they're used and in the XML files as well if you're looking to see how things work or are just curious.
Download Link: File Download
SHA1: 89ff97550cb2cd1a59d44812dc23f21b97e3745c
Password: q2wdcmemesv5
Enjoy!