Merge branch 'release/1.0' into develop
Merge branch 'hotfix/1.0.1' into develop
Made batches and products standalone models.  Finishes #31.

Moved mead categories and descriptions to the top level of the models
file.  Cut and pasted 'all_natural' and 'appellation' methods from
recipe into batch.  Copied relevant fields from recipe and batch into
batch and product.  Even fixed existing tests!
Merge branch 'release/1.1'