Use the foundation defaults for header sizes.
Widen the page a bit.
Remove apostrophes from comments.

The Emacs SCSS mode flips out when there are apostrophes in
comments for some reason.
Style topbar.
Remove unused views.

Left-over from when courses were removed.
Remove unused model.

Left-over when the courses were removed.
Merge pull request #51 from atsheehan/remove_unused_view

Remove leftover files.
Combine articles and challenges into lessons.

Both models share many of the same attributes. When creating a course
structure it will be a mixture of articles and challenges so it
would be easier to have them within the same table.
Remove unused files.
Remove unused tables.
Merge pull request #54 from atsheehan/merge_assignments_challenges

Merge assignments challenges
Display lessons as blocks rather than in a table.
Import lessons.
Merge pull request #55 from atsheehan/style_lessons

Style lessons
Add position to lessons.

Can specify the order that they appear.
Add sample lesson on expressions.
Remove focus: true from spec.
Merge pull request #56 from atsheehan/order_lessons

Order lessons
Remove focus: true from spec.
Merge branch 'master' of github.com:atsheehan/event_horizon