Check_MK Werk 6234: SLA computing: added some bugfixes relating to special timeperiods

ID: 6234 Title: SLA computing: added some bugfixes relating to special timeperiods Component: Multisite Level: 1 Class: Bug fix Version: 1.6.0i1 The computation failed when a configured timeperiod did not have a single match within the queried timerange. This only happened with specifically set, non recurring, timeperiods, e.g. <tt>'2002-03-30': [('00:00', '24:00')]</tt>.