1) Crash when trying to download covers.  Apparently I missed the bit in the KIO docs where the jobs will
delete themselves when ready.  I believe this fixes bug 156204.
2) No longer allow eleventy billion KIO download progress windows to show up while filling in the cover
chooser dialog.

CCBUG:156204

svn path=/trunk/KDE/kdemultimedia/juk/; revision=805279