* use QSets instead of QLists where we are doing lots of random access and no sequential
* get rid of the stale marking as all items in the oldMatches list are, by definition, stale
svn path=/trunk/KDE/kdelibs/; revision=938708
A local copy of the context is now created in the FindMatchesJob ctor, not anymore in AbstractRunner, this prevents old queries to be run with a valid dptr
svn path=/trunk/KDE/kdelibs/; revision=935342