F003: add stats age
TODO
In F003 we have
Stats reset: 2018-11-07 05:13:57 -0500 EST
Report created: 2019-01-15 18:30:08 -0500 EST
but we miss Stats age, so that you can immediately see how much back it is:
Stats reset: 2018-11-07 05:13:57 -0500 EST
Report created: 2019-01-15 18:30:08 -0500 EST
Stats age: 69 days 13:16:11
Acceptance criteria
As a DBA I see in F003 stats age and understand, how much time back it was.
Edited by Anna