Added IOLoop:set_interval()
Added IOLoop:set_interval()

luastoned/turbo,ddysher/turbo,luastoned/turbo,zcsteele/turbo,YuanPeir-Chen/turbo-support-mipsel,kernelsauce/turbo,mniestroj/turbo,zcsteele/turbo,ddysher/turbo,YuanPeir-Chen/turbo-support-mipsel