* Fix "update" recipes in IC2 classic to use the new "update" command
* Remove the crafting plan model from the item detail page as it isn't
being used there right now and can be slow for complex items
* Update the `Recipe.compareFor` method to be able to work without an
item slug as a reference
* 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