- moved ad banner to top of screen and removed underlaying text

- interface updates; miscellaneous

- updated for iOS 10

Moved ball/strike/out buttons further away from banner.

Replaced iAd with Admob

Correct screen layout issue.

User interface tweaked.

Updated for iOS 7

Updated app rating system and added app sharing (Facebook and Twitter) options.

Support added for iPhone 5 screen resolution.

Fixed possible synchronization issue of user defaults whenever an option is changed.