add some simple CTCP support

[thejh]

This adds some simple CTCP support.

• ctcp event with from, to, text, type
• ctcp-privmsg event with from, to, text
• ctcp-notice event with from, to, text
• ctcp-version event with from, to
• action event with from, to, text
• .ctcp(to, type, text) method
• automatic answer to CTCP PING

[martynsmith]

Are you able to update the documentation too? I haven't looked over the code too closely yet (it just so happened that I was looking at implementing some CTCP support myself) :-)

[thejh]

Added some documentation.

[akavlie]

Yes please. Just looking into support for ACTION events now; best that node-irc send that as a separate event.

Side note: IRC conventions seem to be really poorly documented. Try a search for "\u0001 ACTION" on Google. You don't get anything comprehensive or authoritative.

[martynsmith]

This looks pretty reasonable. I'll have a crack at merging it soon.