QwtGraphic::render() respecting initial painter transformations


git-svn-id: svn://svn.code.sf.net/p/qwt/code/trunk@2011 29e17f8d-cf37-471e-a288-72cc03a76eda
QwtKnob/QwtThermo updates, when changing the slider


git-svn-id: svn://svn.code.sf.net/p/qwt/code/trunk@2015 29e17f8d-cf37-471e-a288-72cc03a76eda