Provisional Tracking now available

Updates:
- Provisional tracking now works.  Tracks number of games left as provisional and removes provisional status after that value goes below 1.

- Fixed error message bug with profile editing for rankings.

- Minimum ranking cannot become negative.

- Transfer the storage of app information out of the main SD card folder and into the app's folder so that if the user deletes the app, the folder will go with it.

- After a minimum of 3 days have passed and the user has opened the app a minimum of 7 times, the app will prompt for a rating on the Google Play Store.

- Changed the splash screen to something slightly more professional, with the option to change back added in the settings.