Added Non-Member view.  Closes #15

Settled on `where(Entity.is_member == 0)` as `where(Entity.is_member is
False)` and `where(not Entity.is_member)` did not work.

Fixed flake8 error
Incorporated changes from @cmrn's comment

https://github.com/makehackvoid/mhvdb2/pull/39#issuecomment-46173141
Merge pull request #39 from jamiereid/table-of-entities

Added Non-Member view.  Closes #15