v3.0.0

Added

• Helpers can now be passed to the asynchronous actions returned by calls to asyncActionCreator. Actions now have the signature asyncAction(payload, helper)

Changed

• BREAKING: Synchronous actions returned by calls to actionCreator now accept a
  payload object instead of individual properties:
  Before: syncAction('TYPE', prop1, prop2)
  After: syncAction('TYPE', {prop1, prop2})

• BREAKING: The store dispatch function is now included as part of the helper object mentioned above for asynchronous action thunks.