IDEA-106223 remember the changes we've offer before and do not show the notification about the same changes during the next "rootChanged" event; also remember the previous notification and expire it when the new one is shown [rev=alexander.lobas]
IDEA-106573 library reference ids should start from 1, not 0
IDEA-106740 do not create part-references if parent style is system; correctly create part-references if parent style is specified in "@style/styleName" form [rev=alexander.lobas]