added example 'irc watcher' using picojson.
added example 'irc watcher' using picojson.


git-svn-id: 6c1eac36181f3a92167c09a71a10de74d353aa14@34262 d0d07461-0603-4401-acd4-de1884942a52

turenar/picojson,karya0/picojson,pfultz2/picojson,Banchi0123/picojson,kazuho/picojson,Banchi0123/picojson,kazuho/picojson,karya0/picojson,turenar/picojson,pfultz2/picojson