1.7 spigot

The 0110c28 commit fixes the nether the way we want it.  1:3 ratio and a smaller (although still large) search radius.  Testing shows that the distance between portals in order to get a new location in the nether is over 2x the search radius.  So, the original 128 means 512 between portals while the new 64 means 128 between portals.

The other commit means that your repo will build without having to build the dependencies locally.