Get rid of out own Xinerama impl. and use GdkScreen routines instead (that fixes at least two issues I can see ,the requirement to have Xienrama enabled in libxfcegui4 to get support for in in xfwm4, and as a side effect, xfwm4 is now compatible with SUN Xinerama which is slightly different from XFree Xinierama)
Add a new theme, from my numerous attempts to deign a default xfwm4 theme for 4.2
Remove the theme "synthetic" that sould be moved to xfwm4-themes package


(Old svn revision: 11752)