Terminating active memberships should be have warning for the financer

[agmes4]

Feature

there should be a warning when ever there will be a active membership terminated by handling dept of members.

Motivation

now a days it has become harder in identifying an active member when calculating the difference. There should be an indication rather which active member it effects. Also it should be visible for the executive board that a membership has ended. So the necessary steps can be done by the executive board.