Merge branch 'master' into x/lte-multiru

* master: (71 commits)
  component/restic: version up v0.16.1
  software/slapos-master: support new "nofile" option
  software/wendelin: Set zopewsgi nofile option default to true
  software/erp5: Add nofile option
  Add sslpsk.
  rapid-cdn: Avoid needless trailing slash sent to backend
  component/kerberos: Enforce SlapOS provided components
  component/p11-kit: Extend PATH to make xzcat available
  component/xorg: Extend PATH to make xzcat available
  pygolang: Provide python-interpreter:exe
  component/ghostscript: backport a bugfix patch
  component/ghostscript: remove ignored --disable-threadsafe
  component/ghostscript: build with libidn
  component/curl: build with libidn2
  component/libidn: new component (libidn and libidn2)
  component/slapos/obs.cfg: fix after perl version up
  component/gtk-2: Extend PATH to make xzcat available
  component/freetype: Extend PATH to make xzcat available
  component/trafficserver: Version up
  software/backupserver: Follow up nginx upgrade
  ...