* Resynchronize on Debian, the remaining delta for ubuntu is: * debian/patches/server_side_gradients.patch: - don't use server side gradients, most drivers don't handle those and are really slow, should workaround performances issues for ati and nouveau * debian/patches/cairo-lp-680628.patch: - git backport to fix pdf printing speed issues (LP #680628). * debian/libcairo2.symbols: Fix build failure with -flto (adding optional symbol).