browser node seems to be deleted independently which causes the crash when operation dialog is auto deleted
Merge branch 'master' of https://github.com/leonardo2d/douml
Revert "Reverting SharedPointer on ClassDialog::Instance"

This reverts commit 258ed4dd0dcac8755743680b22cd118b34d3261c.
painting of italic font stopped working for some reason
it seems like qt had ::paint function for QMenuItem at some point which is
no longer there. As a result - all italics font in Q3PopupMenus fails
This commit fixes that issue for inherited abstract operations and should
be used aas a reference on how to deal with this problem