Wrap the call to poll with try/catch
Wrap the call to poll with try/catch

Without this, an error in poll() will cause mayhem as an exception is thrown
in a Qt event handler, causing an abort with a nasty message.

strahlex/QtQuickVcp,qtquickvcp/QtQuickVcp,JDSquared/QtQuickVcp,araisrobo/QtQuickVcp,araisrobo/QtQuickVcp,jonnydee/nzmqt,bobvanderlinden/QtQuickVcp,araisrobo/QtQuickVcp,JDSquared/QtQuickVcp,machinekoder/QtQuickVcp,machinekoder/QtQuickVcp,strahlex/nzmqt,strahlex/QtQuickVcp,oskla129/nzmqt,JDSquared/QtQuickVcp,JDSquared/QtQuickVcp,machinekoder/QtQuickVcp,qtquickvcp/QtQuickVcp,araisrobo/QtQuickVcp,strahlex/QtQuickVcp,qtquickvcp/QtQuickVcp,bobvanderlinden/QtQuickVcp,qtquickvcp/QtQuickVcp,bobvanderlinden/QtQuickVcp,machinekoder/QtQuickVcp