v3.1.0

Update source code based on 3.1.0 release (#5)

Missing features:
- Saved Cards
- Offers Screen

New features:
- Logout method change
- Method for custom Notification sound

v2.10.0

Update source code based on 2.10.0 release (#3)

v2.9.0

Update source code based on 2.9.0 release (#1)