From valeri Fine: Fix a crash when running with Qt and one starts the GuiBuilder from the TCanvas menu
From valeri Fine:
Fix a crash when running with Qt and one starts the GuiBuilder from
the TCanvas menu


git-svn-id: ecbadac9c76e8cf640a0bca86f6bd796c98521e3@10580 27541ba8-7e3a-0410-8455-c3a389f83636

bbannier/ROOT,dawehner/root,dawehner/root,dawehner/root,dawehner/root,bbannier/ROOT,bbannier/ROOT,dawehner/root,bbannier/ROOT,bbannier/ROOT,dawehner/root,bbannier/ROOT,dawehner/root,dawehner/root,bbannier/ROOT