New Features:
* SparseZoo table UI added for finding available recipes and models in the zoo.
* APIs added for looking up similar recipes and getting the base model associated with a recipe.
* Convenience methods added to the Model and Recipe class to lookup related objects to the current instance.
Changes:
* Version changed to be loaded from version.py file, default build on branches is now nightly.
* Removed all references to optim and optimization in favor of sparse and sparsification.
Resolved Issues:
* None
Known Issues:
* None