17 July 2015, CL31RAO, CL31RUB, CL51RAO, CL51CG: change of parameter algorithm_options from "0" to "1"

The parameter "algorithm options" has been changed for all mentioned ceilometers from "0" to "1". (CL31RAO: 10:05 UT, CL51RAO: 10:08 UT, CL31RUB: 10:12 UT, CL51CG: 10:13 UT). Furthermore, for CL31RUB the parameter "algorithm general" has been changed from "1" to "3".