- Minor fixes.

This update from Apple will improve the functionality of this app. No new features are included.

- Change icon
- Add new color

- Change icon
- Add new color

- Change icon
- Add new color

- Change icon
- Add new color

- You can easily check the details of the event by pushing(3D Touch) in the event's speech bubble.
- Add color
- Improve animation

- You can change the color by swiping up.

- Two types of color were added.
- Fine adjustment of the design.

- It corresponds to iOS 11 and it became easier to use.

Bug fix.
Add new color.