Isk tool: Update total row to only include shown rows

[rawrgit]

When applying filter "does not contain" something the "grand total" is not changing. So grand total gives the total no matter what you filter out.

[GoldenGnu]

I'm going to mark this as a feature request, as It is the way it have always worked.
I can see the usefulness in updating the total on filtering, so I think it's a good idea.