[WriteLog] Blacklisting packet spots proved to be helpful

[K2MK]

This might not be the intended function for the recent addition of the 
blacklisting option in the packet spots window. During the DX contest I 
frequently jumped on spots for stations that I had worked but that got 
relisted as unworked in a truncated version by the skimmer servers. For 
example, 5B/RN3QO would be spotted as RN3QO. Similarly 4O/E77W, F/G4BJM, 
etc.. By blacklisting RN3QO, etc. those spots would appear in a gray 
highlighted italic text style. I could have also chosen to hide blacklisted 
spots and they wouldn't be visible at all. And blacklisting is very simple 
with a simple right click.

This is also very helpful for the occasional station that is calling CQ but 
is not in the contest and for calls that come up busted on a regular basis.

I planned on deleting the blacklisted calls after the contest but I saw that 
the blacklisting does not carry over to other contest modules. I guess the 
data is saved in the contest in which it was entered. This seems like a good 
thing.

73,
Mike K2MK