Update version to 0.6.1
Update version to 0.6.1

Qihoo360/ngx_http_subrange_module,Qihoo360/ngx_http_subrange_module,fengshao0907/ngx_http_subrange_module,fengshao0907/ngx_http_subrange_module,fengshao0907/ngx_http_subrange_module,Qihoo360/ngx_http_subrange_module