Changes flash layout to use the alert styles from bootstrap. Fixes #58.
Adds HeroImage model. Fixes #63.
Adds validation and tests for the HeroImage model.
Merge pull request #74 from WGBH/style-flash-messages

Changes flash layout to use the alert styles from bootstrap. Fixes #58.
Runs migration to add fields to heroimage
Removes attr_accessor because it was conflicting with how ActiveAdmin saves the HeroImage. Fixes #64.
Merge pull request #75 from WGBH/add-heroimage-model

Add heroimage model
Merge pull request #77 from WGBH/heroimage-with-activeadmin

Heroimage with activeadmin
Adds SidekickImage model and tests for validation. Fixes #65.
Adds migration for the fields for SidekickImages.