Remove dead code.

Signed-off-by: tungpham31 <tungpham31@gmail.com>
Fix bug enrolling in join courses.

Signed-off-by: tungpham31 <tungpham31@gmail.com>
Hacky way to fix bug updating course permission.

Signed-off-by: tungpham31 <tungpham31@gmail.com>
Merge branch 'release_v1.0' of ssh://github.com/timdrichards/Lecture-Viewer
Merge branch 'master' of ssh://github.com/timdrichards/Lecture-Viewer