fix bug
Remove media file
loc commit
merge Thanhbq
Meger Loc5
Merge Tha
Add backup db
Database backup
Add change password
Add permission page
Permisson
Add activated warning
Add view student result
sua admin
Merge branch 'master' of github.com:anhlt/elearning
begin merge Minh
Merge remote-tracking branch 'origin/minh'
merged Minh
Fix layout
Merge pull request #3 from anhlt/minh

Fix layout