All code (excluding the bundled APIs from other mods, which are covered by their respective licenses) are released without restriction into the public domain under the CC0 1.0 license (http://creativecommons.org/publicdomain/zero/1.0/legalcode) FAQ (https://wiki.creativecommons.org/CC0_FAQ). Do what you want with it, as long as you smile while doing so. While it is not a requirement, it would be nice to know if it is being used and how, so send me hello to crazypants.mc at gmail.com.
###Sound Credits
Most sound attributed under Creative Commons Attribution 3.0 Unported (CC BY 3.0)
Credits: