public static void addFrozenBiome(BiomeGenBase biome, int weight) {
    if(weight < 1) return;
    for(int a = 0; a < weight; a++)
        frozenBiomes.add(biome);
    BiomeManager.addBiome(BiomeType.ICY, new BiomeEntry(biome, weight));        
}

This either needs to add our climate shit OR the support file you deleted had the types so we could set them to these.

How ever, this is 1 way its preventing using layers :p

A much better map finally :P

http://imgur.com/aCvq4Ao

Working on BiomeManager stuff now... closing this, see #165 for latest discussion