Finish improve view course
Merge pull request #13 from nhattan/improve-view-course

Improve view course
Finish view profile
Merge pull request #14 from nhattan/view-profile

Finish view profile
Finish view user list
Merge pull request #15 from nhattan/user-list

Finish view user list
Finish activities
Merge pull request #16 from nhattan/activities-gem

Finish activities
assign-admin-trainee-to-course-update