Change licence to MIT
Change licence to MIT

Since September 14, 2014, all new code has been licenced as MIT.

Old code was licenced under the SpoutDev licence. The SpoutDev licence
states that all code is LGPL, but changes to MIT after six months. In
other words: today the last bit of code that was LGPL changed to MIT.

MCTCP/TerrainControl,Ezoteric/TerrainControl,whichonespink44/TerrainControl,PG85/OpenTerrainGenerator,LinkBR/TerrainControl