Change history of «Operator»

α	β	date	comment
		08 Nov'14 19:22
		12 Nov'14 15:02
		12 Nov'14 15:03
		12 Nov'14 15:04
		12 Nov'14 15:16
		27 Nov'14 17:58	I removed the save-function in this version because otherwise the code would be too long for uploading.