Fixed crashes ocurring on some of the newer Samsung devices

This app has been updated by Apple to display the Apple Watch app icon.

- Hardcore mode (more details at https://www.facebook.com/infinitodegame/posts/344727562633768).
- Enemies poisoned with multiple Venom towers have multiple poison icons over them.
- Fast enemies slow down by 5% with each poison effect and get +5% damage from other towers.
- More details on the Game Over screen.
- Bug fixes.

- Bug fixes and performance improvements
- Fixed battery drain in background
- New level
- Icy enemies damage base with 50% probability
- Every Poison effect reduces Fast enemy's speed by 3% (if Fast enemy is attacked with 2 different Poison towers, it runs 6% slower) up to -24%

Bug fixes and small improvements