Actually fix plum trees dropping apple saplings (Only newly generated trees will be affected)
There are no fruit trees with 2x2 trunks.
Wolves won't despawn like enemies.
Fixed some food prep validation and made food item classes more generic.
Previously generated plum trees will now drop plum saplings (so long as they still have plum leaves)
Reverted change that would pop up a forge warning message for players who have worlds from before this patch.
Fix blast furnace being unlightable with 1-tall chimneys
Merge remote-tracking branch 'remotes/origin/master' into plumfix_mergeable, resolving conflict
Merge pull request #464 from upthorn/plumfix_mergeable

Plumfix mergeable
Merge pull request #465 from upthorn/misc_fixes

Misc fixes