* Tweak style of quantity label in output box to be more visible
* Move data files for all mods under a directory for the specific
version of the mod
* Add a `silent` property to the base model to prevent models which
shouldn't be observed from emitting events
* Change the term "itemSlug" to just "slug" across the board
* Change all models so that they don't require their parent in their
constructors and so that they don't automatically add themselves to
their parents lists
* Remove a bunch of unnecessary event triggering
* Tighten up access to various lists of children across all models
* Refactor the guts of the V2 parser into an abstract base class so
it can be used for other parsers in the future
* Remove a number of unused methods
* Rewrite the crafting algorithm to recursively find all the steps
involved and then resolve how many times each needs to be run.
* Update the base controller to debounce calls to refresh
* Fix a few erroneous recipes for IC2-Classic
* Changed "version" to "dataVersion" in data format
* Changed the "modName" and "modVersion" fields on the ModVersion
class to remove the "mod" prefix and changed the data format to
match
* Change the Stack class to use the itemSlug instead of the item
itself
* Update the ModVersion and ModPack classes to include methods for
recording a correspondence between slugs and names. Update code
which displays items from stacks to use these methods to determine
display names.
* Add a reference from Recipe back to the item it creates
Andrew Miner