Border radius bug fixes

Fixed bugs as mentioned by @vmichaud 

- In function paintBackground0() of class AbstractOutputDevice, you are using function setClip(borderBounds) instead of clip(borderBounds) function. Because of this, headers and footers of my PDFs are not displayed on each page of my PDF, but only one time, respectively at the first page and the last page.
- If I use the property 'border-bottom-right-radius', it's the bottom left corner which is radius -> Problems are located in constructors of classes BorderPropertySet (inversed left and right) and BorderRadiusCorner (duplicated _rightPercent affectation instead of _leftPercent... without consequence).