refs #16 @10m Add Admin subheading and links for Dogs and Apps.
refs #17 @20m: Make a script that should add an admin user.
refs #17 @5m: Use ROLE_ADMIN define.
refs #17 @5m: Fix syntax error in setup.py
refs #17 @5m: Fix syntax error with imports in add admin script.
refs #17 @5m: Make sure the newly created user is active.
refs #16 @5m: Remove bad url_for from nav.
refs #16 @10m: Create a root view for the dogs blueprint.
refs #16 @5m: Add link to add dog.
fixes #16: Made an admin specific part of the nav bar.