Change title limit to 255
Scaffold course and segments
Modify courses controllers and views
Add url for courses
Modify Front Page
Change course url to make it SEO friendly
Add proper index to courses and segments
Add routes, controller, views for segments
Change routes and add links for segments
Modify course index and show layouts
Fix a bug of missing closing tag
Change about layouts
Add classroom view, modify resources for segments, modify segments views
Add name and level function to Course
Validate course
course validation
Add more validation to course
Integrate segments into classroom
Auto complete new segment form
Use ajax to change video and exercise