Re-planned Unit 1 curriculum for outputting numbers and blank lines
Rename Unit on home page
Initial markup for 1.1.1 and 1.1.2
Error message should say content_for not set_content_for
Fix broken Basic Ruby image link in top-left
"read the error message" not "read the error"
Make stylesheets only apply to pages within certain controllers by adding class to <body> element.
Code now expands to take up the whole window; made action buttons horizontal not vertical
Breadcrumbs should show title of unit and lesson
Oops code should be a textarea not a div
Added latest release of Opal
Machine can now count to 3