Hi!

Sorry for being very inactive with both answering your messages and developing the plugin.

Due to my hectic personal life I'm forced to abandon the further development of RestrictedCreative. I'm really sorry about that, but a decision had to be made and something had to be cut. I will make all versions of RC open source, so anyone can continue it's development for personal purposes. Distributing the plugin and it's derivatives is still prohibited, as I may continue the development at a later date.

Here's the source code: https://bitbucket.org/Prunt/restrictedcreative/src/master/
You can download some versions here: https://bitbucket.org/Prunt/restrictedcreative/downloads/