ref #76 add DPIScalingHelper; add first usage
fix hovering  (was darker than intended); react to display changes
implement working solution for screen dpi changes
revise sizehint
Add dpi awareness to ColorEditor
fix narrowing conversion
test qstyle drawing
fix ColorEditor high dpi support
Merge remote-tracking branch 'origin/master' into hidpi_ready_76

Conflicts:
	source/propertyguizeug/source/ColorEditor.cpp
add alpha option for propertyguiexample backgroundColor
revisit dpi helpers
Merge pull request #101 from hpicgs/hidpi_ready_76

Make propertyguizeug dpi aware