Checkmk Werk 10252: Fix broken "Start livestatus proxy" global setting after update from CRE to CEE

ID: 10252 Title: Fix broken "Start livestatus proxy" global setting after update from CRE to CEE Component: Site Management Level: 1 Class: Bug fix Version: 1.7.0i1 The global setting "Start livestatus proxy" is used to enable the livestatus proxy daemon in Checkmk sites. It is a "omd config" setting which can also be set using the Checkmk GUI. Previous 1.6 versions did not correctly initialize new OMD configuration settings after "omd update". When updating from CRE to CEE the new configuration option <tt>CONFIG_LIVEPROXYD='on'</tt> should be added to <tt>etc/omd/site.conf</tt>, because this file needs to hold the current effective config options for all available OMD settings. The missing update of this file resulted in a "KeyError ('site_liveproxyd')" exception in the GUI when trying to edit this setting.