Fixed block name collisions, some refactoring
Tweaked Jade tools & armor, added paxel recipe

Completes http://erebus.fo2.cz/erebus/issues/1
Completes http://erebus.fo2.cz/erebus/issues/4
Added new logs and leaves (+put into 1 block)
Merge pull request #6 from chylex/master

Block and item names, jade tools, paxel recipe, new logs