save myself
save
Merge branch 'master' of https://github.com/Shunix/Database-Class
Merge branch 'master' of https://github.com/Shunix/Database-Class
add grade ajax func
Merge branch 'master' of https://github.com/Shunix/Database-Class
fix bugs
Merge branch 'master' of https://github.com/Shunix/Database-Class