Fix Issue #617: QRadioElement selected item not appearing as default value

Fix Issue #617: QRadioElement selected item not appearing as default
value
Merge pull request #620 from kayrules/master

Fix Issue #617 QRadioElement default value for selected item index
Merge branch 'master' of http://github.com/escoz/QuickDialog into mine-master

# By KayRules
# Via Eduardo Scoz (1) and KayRules (1)
* 'master' of http://github.com/escoz/QuickDialog:
  Fix Issue #617: QRadioElement selected item not appearing as default value