Update to SpecialSource 1.3-SNAPSHOT
Add experimental NMS inheritance for plugin remapping

Enabled by bukkit.yml mcpc.plugin-settings nms-inheritance
Fixes NMS inheritance test case with WorldServer getTileEntity:

https://github.com/agaricusb/IncompatiblePlugin/commit/0517f5b05e8c13ff8c2814b0296a31573a7c93ff