Stabilized status report

1. The status is now not deleted from cache immediately when it expires, but it waits to be renewed, this shows older data for a while but lets the monitoring not report a failure - because there is no failure really, we are just waiting for a new check.

2. Timestamps, idents - added possibility to monitor detailed information by using idents. For example a monitoring service can now check if "myServer_Health=true" is present, if not, then report that the health check is having a problem, not anything else. There is also a "myServer_Summary=True" that allows to check overall status.