User can successfully update their category.
added missing files
fixed issues
fixed tabbing and added database.yaml.example
Merge branch 'master' into update_plant_category

* master:
  Clean up more styling.
  Implement the three homepage versions (no styling).
  Install capybara javascript driver (capybara-webkit) and slim down foundation javascript requires.
  Basic site layout styling.
  Install foundation-rails and run `rails g foundation:install`