Restore 0.6.x Biomes o' Plenty sub-biome generation 2

[kotmatross28729]

So, basically, it's the same #7, but with some changes: (I don't know why I wrote all this out, it's obvious from the code, but)

• ClimateControlSettings

  • use false by default for noBoPSubBiomes
  • replace noBoPSubBiomes.value() == false with !noBoPSubBiomes.value()

• BoPSubBiomeReplacer

  • change 24 to BiomeGenBase.deepOcean.biomeID

• ClimateControl

  • use Loader.isModLoaded instead of try/catch

• GenLayerSubBiome

  • comment out debug lines (don't initialize int old and don't check if (aint2[j1 + i1 * par3] != old all the time)
  • spotlessApply

Tested, works

Closes #7