Add indicator in tab "Track judgements"

[jbenito]

[From Marco Cirelli, ICHEP 2010]

In the Abstract Interface *of the Conference Manager*, it would be helpful if the Track Judgment tab would report the number of items contained inside, as the Internal Comments tab does.
E.g. consider this snapshot below. The third tab says that there are 3 internal comments (so I can click and see what they say) but not that there is 1 Track judgment. I know that Track Judgments are less important than Internal Comments (in the sense that they are just the log of what happened to the abstract and in principle should contain little extra information) but they can be useful to know the history of the abstract.