main/perl-devel-symdump: upgrade to 2.12 and claim maintainership
main/perl-test-exception: upgrade to 0.35 and claim maintainership
main/libxkbcommon: upgrade to 0.5.0
main/wayland: upgrade to 1.6.0
main/libcec: upgrade to 2.2.0
main/ympd: upgrade to 1.2.3
main/syncthing: upgrade to 0.10.5