paste.sr.ht: add -nginx subpackage

paste.sr.ht: fix typo in conf.d installation

paste.sr.ht: overhaul init files

paste.sr.ht: bump pkgrel

sr.ht/paste.sr.ht: upgrade to 0.9.0

paste.sr.ht: update to 0.4.1

paste.sr.ht: add py3-yaml dependency

paste.sr.ht: normalize init scripts

Add paste.sr.ht.post-upgrade

Add paste.sr.ht package