Pure Grid calendar widget是一款放置在桌面的小插件，方便的进行整月日历显示和日程查询。
2.6.9更新内容：
- NEW any week day start
- IMPROVE duplicates filtering
- FIX APK manifest error
- FIX crash at initial setup
- FIX issue with Due Today default tags filtering
- FIX issue with Astrid Clone tags filtering
- FIX settings import/export : calendar selection