Tried to fix some problems with many inserts from many clients.
Merge remote-tracking branch 'origin/master'
Made the stresstest with several inserts from several clients work
Made the stresstest with several inserts from several clients work and made the stresstest with inserts and removes work sometimes
Made the situation with several interlaced inserts and a remove somewhat better.
Merge remote-tracking branch 'origin/master'
Made the situation with several interlaced inserts and a remove somewhat better.