Merge pull request #2 from everlast/develop

added social feedback buttons
20 => NG二十〇、OK:二十
30 => NG:三十〇、OK:三十
- modify text.
- add link to http://pwiki.awm.jp/~yoya/?resign
add target _blink to http://pwiki.awm.jp/~yoya/?resign
add licence text to head comment.
modify text > resignation notification (not wish)
added Hatena Bookmark button.