Redirect shopping cart to login page if user not logged in

Signed-off-by: Takashiro <takashiro@qq.com>
Redirect to home.php after logged in by default

Signed-off-by: Takashiro <takashiro@qq.com>
Adjust the top and bottom margin of box

Signed-off-by: Takashiro <takashiro@qq.com>
Add a new module to manage announcements

Signed-off-by: Takashiro <takashiro@qq.com>
A new function to print order tips

Signed-off-by: Takashiro <takashiro@qq.com>
Display subtype on each ticket

Signed-off-by: Takashiro <takashiro@qq.com>
Add a new module to manage administrators

Signed-off-by: Takashiro <takashiro@qq.com>