Added IsBiomeVeryCold() and IsBiomeCold() functions.
Added new biomegen: Grown
Added a missing header to CMakeLists.
Fixed a copypasta error in cIntGenAddToOcean.
BioGenGrown: Smaller biomes, add land to map center.
IntGen: Attempt at fixing Linux compilation.
Removed too advanced C++11 features.

We need to keep gcc 4.6 compatibility; these features were not implemented in that version yet.
cIntGen: Added a virtual destructor.
Merged branch 'master' into GrownBiomes.
Grown biomes: made biomes smaller, made beaches smaller.
Merge remote-tracking branch 'origin/master' into GrownBiomes
QtBiomeVisualiser: Added a prototyping int generator flavor.

This generator is easier to manipulate, since it doesn't require rewriting the sizes in the template parameters. On the other hand, it doesn't optimize so well, so it's a bit slower.
QtBiomeVisualiser: Set start zoom to 25%, just like AMIDST.
QtBiomeVisualiser: Fixed default zoom selection.
GrownProt biomes: added alterations.
Merge branch 'master' into GrownBiomes
GrownProt biome gen: Added biome edges.
GrownProt: Added the rest of rare and M biomes.
Grown biomes: Unified with GrownProt biomes.

Also fixed a Zoom filter randomness.
Grown biomes: fixed Linux build.