add check_nickname for musically
add check_nickname for musically

zhuxiangkui/erl_tool,zhangchaoeasemob/erl_tool,wcy123/erl_tool,wcy123/erl_tool,zhangchaoeasemob/erl_tool,zhuxiangkui/erl_tool,zhuxiangkui/erl_tool,wcy123/erl_tool,zhuxiangkui/erl_tool,wcy123/erl_tool,zhangchaoeasemob/erl_tool,zhuxiangkui/erl_tool,wcy123/erl_tool,zhangchaoeasemob/erl_tool,zhangchaoeasemob/erl_tool