Graphics updated and physics updated

Graphics have been updated and physics engine has been updated.

This update from Apple will improve the functionality of this app. No new features are included.

2018 Winter Games is here!
Graphics updated and Speed Skating added!

- All graphics updated!
- New winter events added!
- New ski slopes added!

Now compatible with iOS7 and iPhone5s.
Graphics engine updates and speed improvements.
New higher resolution images, including a new icon!

Updated to work on iPhone 5 and iPad retina displays!
OpenGL graphics update.
New skiing aerial event added.
Optimization and bug fixes.

Bug fix for iOS5