Merge remote-tracking branch 'gamato/master'
Upgrade libusual to master, rewrite pgqd Makefile

Old setup.mk is now dropped in libusual, convert
pgqd to use antimake.mk instead.
Merge branch 'master' of https://github.com/markokr/skytools into hotfix/3.2.2
v3.2.2
Merge branch 'hotfix/3.2.2'