updated default observer definitions
updated default observer definitions

in order to be compatible with the latest concordia version modified in ac38d0dfc4c16809f7587f8677282806464159f9.
HaiJiaoXinHeng/server-1,HaiJiaoXinHeng/server-1,hongsudt/server,hongsudt/server,hongsudt/server,HaiJiaoXinHeng/server-1