travis: unbreak the build, libxfixed-dev is required at minimum
travis: unbreak the build, libxfixed-dev is required at minimum

PKRoma/xrdp,metalefty/xrdp,metalefty/xrdp,neutrinolabs/xrdp,metalefty/xrdp,neutrinolabs/xrdp,neutrinolabs/xrdp,PKRoma/xrdp,PKRoma/xrdp