Add Foundation icon support for flash messages.

- To add an icon, prepend the message with "%{icon:my-icon-name}".
- Current spec status: 64 examples, 0 failures in 0.88582 seconds.
Merge pull request #3 from sleepingkingstudios/feature-flash-icons

Add Foundation icon support for flash messages.
Merge branch 'master' into feature-blog
Implement Admin::Blog #new and #create actions.

- To enforce the singular resource, both the #new and #create actions will fail
  and redirect back to #show if there is already an existing Blog.
- Current spec status: 73 examples, 0 failures in 1.09 seconds.
Refactor Admin::Blog #new form into _form partial.

- Current spec status: 73 examples, 0 failures in 0.60541 seconds.
Implement Admin::Blogs #edit and #update actions.

- Current spec status: 84 examples, 0 failures in 1.12 seconds.
Implemented Admin::Blogs #delete action.

- Current spec status: 89 examples, 0 failures in 0.76376 seconds.
Add flash messages for Admin::Blog actions.

- Add icons to non-submit buttons.
- Use Foundation breadcrumbs styles.
- Current spec status: 89 examples, 0 failures 1.03 seconds.