0.83   Fri Jun 20 16:44:29 2014
        - add --time-zone opttion to change time_zone
        - add --version option

0.82   Fri Jun 20 1:02:08 2014
        - support vertical line (hirose31)
        - api timestamp support (sonots)
        - renew ui of edit|add_complex
        - add Dockerfile

0.81   Thu Feb 20 16:18:14 2014
        - add --disable-subtract (sonots)

0.80   Tue Dec 24 13:09:44 2013
        - [bugfix] remove *_s.rrd (kazeburo)
        - [bugfix] mysql: text column defalut value error (oranie)
        - [feature] add step option to xport (anoworl)
        - [upgrade] upgrade to bootstrap 3 (kazeburo)
        - [feature] store status of collapse (kazeburo, dayflower)

0.72   Thu Nov 14 13:51:28 2013
        - fix js install issue (Thank you sharl)

0.71   Wed Nov 13 11:01:41 2013
        - update Web UI, update bootstrap and make collapsible  (Thank you dayfolwer)
        - add --mount option (Thank you soh335)
        - fix typos (Thank you karahiyo and sharl)


0.70    Wed Aug 14 10:06:34 2013
        - support float number
        - support rrdcached for improve performance
          (Thank you sonots)

0.62    Fri Jun 28 11:37:55 2013
        - add more json api(Thanks sonots)
        - escape uri (Thanks sonots and shibayu36)
        - add web-max-workers command line option (Thanks niku4i)

0.60    Thu Apr 4 17:07:53 2013
        - added section delete button (Thanks takus)
        - added access_log option (Thanks kentaro)
        - fixed mysql schema (Thanks oranie)
        - fixed docs (Thanks sugyan)
        - display service_name/section_name in <title>

0.50    Tue Feb 26 14:12:42 2013
        - added optional descriotion parameter to POST API

0.40    Mon Feb 25 15:22:25 2013
        - supports cpanfile

0.39    Sat Feb 2 23:09:06 2013
        - fixed spelling (thanks syohex)
        - added Test::Requires 'RRDs'

0.38    Thu Jan 31 13:22:42 2013
        - fixed broken HTML

0.37    Thu Jan 31 11:47:31 2013
        - cpanize version