Calendar Import - Export (ics)

2016年05月21日

## 2.3
* Fix importing calendars from emails (thanks to Fred Dupont)
* Fix an exception when exporting on some systems
* Uses Android 6 runtime permissions

## 2.2
* New icon

## 2.1
* Fix organizer handling
* Scroll view automatically to show buttons
* Use minus instead of slash in app name to improve interoperability with backup apps