don't show image tool tips in magnify and select tool mode
don't show image tool tips in magnify and select tool mode

git-svn-id: 765db44a9620ed55f4f8addfd3c14fe8cd57f6bb@7689 0fceea05-a30d-0410-8a8b-80ef821fb0a1

nanoant/Skim,nanoant/Skim,nanoant/Skim,nanoant/Skim,nanoant/Skim