- [CMDLINE] SF #2770077
  Titles of bookmarks with umlauts are not printed correctly.
- [GUI] Add more context menu actions:
  + Show detailed URL properties
  + View source
- [GUI] Save options in qsettings.
- [PYTHON3]
  linkchecker-git/linkcheck/dns/resolver.py:313: DeprecationWarning: in 3.x, __getslice__ has been removed; use __getitem__
  linkcheck.dns.name.Name(linkcheck.dns.name.from_text(socket.gethostname())[1:])
- [PROXY] Deprecate the --no-proxy-for option now that $no_proxy is supported.