v0.3.2 - 2019-08-12

• Allow passing fit and produce arguments as init_params - Issue #96 by @csala
• Support optional fit and produce args and arg defaults - Issue #95 by @csala
• Isolate primitives from their hyperparameters dictionary - Issue #94 by @csala
• Add functions to explore the available primitives and pipelines - Issue #90 by @csala
• Add primitive caching - Issue #22 by @csala