Backup: Calls and Messages.

Dec 24, 2016

This version brings many fixes and improvements including:

- Faster backup and restore process (about 2x faster).
- Custom backup name! Now you can name your backup with anything you want, for example "Sms from the day I met my honey".
- Prevent crashing on device having kernel issues with memory on Android 6+, such as Galaxy S3.
- Reduced white space.
- Add some warnings.
- Fix ad issue.

Merry Christmas!