Compass and custom SASS configuration doesn't work since rails 3.1 bundled with sprockets (and tilt as dependency). This patch allows customization via engine_options method. http://sass-lang.com/docs/yardoc/file.SASS_REFERENCE.html#options
add redcarpet support
1. rbx doesn't handle dup'ed classes correctly. We'll get the same behaviour with subclasses 2. Allow the filename to be in any position in the backtrace when an exception is raised.
This means line numbers are not correct in 1.4. We'll have to decide if we wish to add a special case for 1.4.