Changed: If the release page is clicked, its page is reloading to the page of the url(Issues #10).
Fixed: I select reload or not when using "In the extensions"(Issues #12)
Changed: I changed the font of the release page on google app engine.
Changed: a button design that using css3 was changed.
Update: the file of blank_sample.zip on the option page.
Changed: a design of the option page was changed.
Changed: I had changed the design of the options page (Issues #13).
Added: new page "History" on the option page. but Its page have a bug.
Added: the new option is added. It "retention period of history".
Changed: change constructor of backup class.
a part of the code is added for context menu. but not used now.
Added: the option of chrome sync was added on the option page.
Changed: the number of days of max_history of default config was changed.
Changed: the display date of history in option page was changed.
ver 2.0.0