Change history of «rand-n-step+»

α	β	date	comment
		19 Nov'11 17:45
		19 Nov'11 22:17
		20 Nov'11 21:00	relative synth stretch
		20 Nov'11 21:14	synth arg fix
		20 Nov'11 21:32
		20 Nov'11 21:36
		12 Dec'11 07:24	fix
		16 Dec'11 17:42
		26 Mar'13 09:12	accept mouse over