Be sure to repatch your 4.0.6 wow client for this core to work proper.
The updated patcher can be found here. https://github.com/ProjectSkyfire/SkyFire-Community-Tools
This repo is still work in progress, if you want to collaborate, please fork and make a pull request. Thanks
For instructions on how to build the Ruby branch, click here
For instructions on how to build the MMaps2_beta branch, click here