Merge pull request #12 from wesleykendall/develop

Fixed email html path rendering bug
Merge pull request #13 from ambitioninc/develop

Fixed email html path rendering bug
Don't instantiate default datetime at model loading.
Bump patch version number
Add comment on default-datetime
Merge pull request #14 from Wilduck/datetime-bug-fix

Don't instantiate default datetime at model loading.
Merge branch 'master' of https://github.com/ambitioninc/django-entity-emailer
updated entity and entity subscription requirements. Started changing tests to account for the new entity interface
added migrations to change subentity_type to subentity_kind. Performed two migrations so that the user has the ability to write a data migration