- support limit max and min selected days
- rename file
- support month position offset
- support custom date widget
- support not serial multiple selection
- fix bug
- add export class
- remove unnecessary dependencies libraries
- support change to modify style configures
- fix bug
- support control ensure button title
- support modify day color
- support continuous selection
- support custom headerView
- support modify widgets height
- fix bug
- simple calendar
- Initial release