* Update crafting algo. to favor highest output recipes for making
items, and to be more flexible about trying a variety of recipes if
some one recipe doesn't work.
* Modify crafting algo. to allow crafting of "gatherable" items.
* Update logger to support indent/outdent for clearer formatting
* Convert IC2 Forge Hammer / Cutter recipes to treat them as tools
Andrew Miner
b1a6637005