False positive: High Median currents

[dneise]

I was called since the Median Current was above 115uA at 2017-11-02 01:28:33.
Feedback had already taken action, so all was good.

This was the second case (I know about) of a "false positive call" for elevated currents despite Feedback had already taken action.

I think Feedback just needs some time to react, and in order to not react on this false positive, we could either introduce an additional condition asking for an elevated current over a certain period of time ... say 4 minutes (3 shifthelper checks). Alternatively we could just increase a limit a little bit more.

I think the temporal condition is better.