Patch Set 2: I would prefer that you didn't submit this

I think both toggle button and showing number of selected repos above list box is ok (at least I understand it without needing a manual :-)

But the initial selection count when the search wizard is opened is always zero, in my case I have 9 repos in my workspace and all of
them are selected since the wizard remembers what I used in the
last search but the counter says Repositories (0/9), when I toggle
any of the check boxes it shows the correct number.