The QColor constructor prints a warning if the string it gets passed
isn't a known color name. Also, it doesn't know about the alpha value
in strings like "#ff00ff00".
Reviewed-by: Thomas Hartmann
The library qmleditorwidgets contains widgets and image resources
what are shared between QuickToolBar and QmlDesigner
This library is created to make QuickToolBar independent from
QmlDesigner plugin.
All the widgets I moved to qmleditorwidgets are removed from
QmlDesigner in this patch