maxima: update to 5.33.0.
efl: add x11 build option (on by default).
enlightenment: add systemd/wayland build option (on by default).
efl: add missing deps for x11 option; use xlib backend.
grep: update to 2.19.
bluez: update to 5.19.
lftp: update to 4.5.0.
Merge branch 'master' of git://github.com/voidlinux/xbps-packages