rescue Iconv::* and fallback to nkf
move into doc
retry when 437
stop main_th when error
add CodeSearchBot

see also http://www.debian.org/News/weekly/2012/22/#codesearch
Support SSL for IRC client
add URL of IRCnet-JP servers
update version
follow google's changed calc result
squeeze spaces in calc result
revive old logic for currency features
fix typo
Start SSL in main thread
eucjp-ms for iconv is not portable
Add nadoka_fatal_error
Specify from-encoding
Decode %-encoding

And convert WAVE DASH to FULLWODTH TILDE.
Decode HTML character reference
add magic comment for ruby 1.9.x
default nkf options changed and use CGI.unescapeHTML

* remove "--numchar-input" from default nkf options to avoid to unescape "&#38;#38;" twice
* use CGI.unescapeHTML to unescape &amp; and so on