CR-424616 - rename courselets to Courses - just replacing Courselets to Courses
CR-424616 - rename courselets to Courses
- just replacing Courselets to Courses

cjlee112/socraticqs2,raccoongang/socraticqs2,cjlee112/socraticqs2,raccoongang/socraticqs2,cjlee112/socraticqs2,raccoongang/socraticqs2,raccoongang/socraticqs2,cjlee112/socraticqs2