CVS commit by staikos: several deadlock fixes M +8 -6 filterlisteditor.ui.h 1.18.2.2 M +4 -3 kstdataobject.cpp 1.20.4.3 M +2 -1 kstdoc.cpp 1.55.2.4 M +7 -1 kstfilter.cpp 1.8.2.2 M +5 -0 kstplugindialog_i.cpp 1.53.2.2 M +3 -2 kstquickcurvesdialog_i.cpp 1.28.4.2