Implement course create/update views. User kaminari as paginator.
Implement course view for show action.
Add view for course index which will be visite by user.
change precompile to true for deploy. TODO: need to change back to false.
Update gitignore. Specify layout for error page.
reduce file select input size.
fix typo in css file which block assets:precompile.
Add missing title for admin/position view.
Add new way to find courses related to one position.
Implement user show view. Remove unneeded views.
Change logo for demo.
merge jasli2
Implement competency view for user. Update position view to display related course.
Adjust frontend layout. Add filter for course and competency.
update header menu as the common link. Update the left menu.
merge jasli2 master and add zh-CN