Convert sfu_api plugin to Rails 3 routes

Convert sfu_api plugin to Rails 3 routes

This appears to work, however I have only tested a handful of routes.

Test plan:

1. Test each route on a Rails 3 environment
2. Test each route on a Rails 2 environment to ensure back-compat

try to convert sfu_api plugin to rails3 routes

Doesn't actually work. I hate Rails.

change scope wrapper to let non-extension URLs work

Change RAILS_ROOT to Rails.root

whitespace

mark properties with defaults as optional
convert sfu_stats plugin to rails 3 route format
convert sfu_copyright plugin to rails 3 route format
convert sfu_course_form plugin to rails 3 route format
add canvas-rails3 deploy recipe
Merge branch 'rails3-plugins' into edge