[BUG #7273] Adjusted layouts to include padding
[BUG #7273] Adjusted layouts to include padding for separators
[BUG #7273] Separators now use Widgets instead of decorator elements
[BUG #7273] Use box shadows to draw inner borders
[BUG #7273] adapted to modified renderLayout signature
[BUG #7273] don't apply undefined background color
[BUG #7273] Adjusted layout to include padding
[BUG #7273] Removed obsolete decorator classes
[BUG #7273] Apply padding as background-position for images using div elements
[BUG #7273] Fix padding for virtual pane
[BUG #7273] apply padding on knob position update
[BUG #7273] set prefixed box-sizing styles
[BUG #7273] apply padding values defined by decorators
[BUG #7273] removed shadow element test
[BUG #7273] removed debugger
[BUG #7273] removed tint method
[BUG #7273] adjusted tests to reflect new decoration patterns
[BUG #7273] removed getMarkup method
[BUG #7273] unified decorator including all mixins
[BUG #7273] use unified decorator instead of DynamicDecorator