Changes by hand

Signed-off-by: binch <tea@haorenao.cn>
update south migrations

Signed-off-by: root <root@i-twwevaep.(none)>
rename table names of 'read', 'desc'

Signed-off-by: root <root@i-twwevaep.(none)>
Add README

Signed-off-by: Bob <bo-liu@hotmail.com>