fix some bugs

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

Signed-off-by: Takashiro <takashiro@qq.com>
Remove the old callback map from client

Signed-off-by: Takashiro <takashiro@qq.com>
rename members of Room

Signed-off-by: Takashiro <takashiro@qq.com>
upgrade client notification commands

Signed-off-by: Takashiro <takashiro@qq.com>
remove old callback map from Room

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