Improved StatusBar and ToolBar appearance
Improved StatusBar and ToolBar appearance

On other platforms than mac we cant really rely on
the style to actually draw anything. This ensures that
we fill with window color and draws a line regardless.

Change-Id: I381afa435e4e3f5cd8e5db031a0a8affcfa6db16
Reviewed-by: J-P Nurmi <b84a892f57a298bb5dae653b4e188948a84d5549@digia.com>

kobolabs/qtquickcontrols,jfaust/qtquickcontrols,richardmg/qtcomponents,mizukusak/qtquickcontrols,richardmg/qtcomponents,drgvond/qtquickcontrols,kobolabs/qtquickcontrols,richardmg/qtcomponents,jfaust/qtquickcontrols,mizukusak/qtquickcontrols,mizukusak/qtquickcontrols,drgvond/qtquickcontrols,drgvond/qtquickcontrols,kobolabs/qtquickcontrols,jfaust/qtquickcontrols