Release 1.3.15

Prepare release 1.3.14

Prepare release 1.3.13

Fixed gradient in app icon.

Added feature icon for the Play Store.

Prepare release 1.3.11

Prepare release 1.3.10

Prepare release 1.3.9.

Prepare new release 1.3.8.1

Prepare release 1.3.8

Prepare release 1.3.7