In-app purchase 1.0.7.1

[HenryQuan]

The price was originally 3USD/year but for now, I have added an introductory price so that it is only 1.49USD for the first year for everyone because the new version is not yet done. It is my first time doing subscriptions so I need to do more testings.

• Implement IAP in but sell it at a lower cost (50% for a whole year while I work on the new version), not yet working for iOS
• Pass IAP test on IOS and Android, not yet working on IOS
• Lock RS and More Info depending on whether it is pro version, also lock main account feature as well
• Keep checking IAP status and adjust pro version everyday
• Validate purchase receipt maybe later
• Auto pop if the purchase was successful

[HenryQuan]

All good.