* Merge from Debian, remaining changes: * debian/patches/server_side_gradients.patch: - Don't use server side gradients, most drivers don't handle those and are really slow * debian/control: Add missing libxext-dev dependency to libcairo2-dev. Spotted by autopkgtest. * debian/patches/git_evince_rendering_fix.patch: Backport GIT commit to fix a rendering bug in evince * debian/control, debian/libcairo2.symbols, debian/rules: - Disable GL backend due to LP: #725434