Substitution string re-added to __init__Template
supybot-plugin-create: Added --desc short description option.
supybot-plugin-create: options.desc substitution for README.md
Merge pull request #928 from joulez/scripts

supybot-plugin-create add --desc option
Anonymous: Better error when "tell" is disabled
Merge pull request #930 from nyuszika7h/fix-anonymous-tell-error-msg

Anonymous: Better error when "tell" is disabled
irclib: Tweak message queue priorities

- Move PRIVMSG and NOTICE from low to normal priority to eliminate
  on-connect lag
- Add CAP to high priority to match CAPAB