Load advanced_entry template on page, rather than via AJAX
Added ace editor library
Load ace.js on advanced settings page
Replaced CodeMirror with Ace on advanced settings page
Make mitxmako.render_to_response not require a dictionary argument
Cleaning up ace options
Load course info update template on page instead of via AJAX
Removed course_info_handouts AJAX load
Replace CodeMirror with Ace on Course Updates page