Adds buckwheat.

Forage in shrubs to find it during all seasons except for winter - rates
and quantities vary by season. It can be cooked on its own or used in
other recipes. It can be ground into flour.
Basic pine tree integration.
Pine tweaks.
More pine recipes.
Pine tea.
Item spawns.
Bushcraft shelters!
Final trimmings for pine trees.
Basic dandelions.
Dandelion greens.
Dahlia roots.
Fried dandelions, dandelion tea.
Dandelion wine.
Pesto recipe.

We have pine nuts now, so why not?
Tweaks.
Pine wine.

It's not as weird as it sounds: http://en.wikipedia.org/wiki/Retsina
Morel mushrooms.

Anyone can identify these on sight, unlike the generic mushrooms. Their
downside is rarity and the fact that they must be cooked before they're
safe to eat.
Tweaks.
Acorns.
Shovel fix.