Checkmk Werk 10774: Homogenize dates in Service Graphs

ID: 10774 Title: Homogenize dates in Service Graphs Component: metrics Level: 1 Class: Bug fix Version: 1.7.0i1 Graph Time range title uses ISO format with day precision YEAR-MONTH-DAY Graph Time axis follows same convention dropping YEAR or YEAR-MONTH if they are the same within the time range.