Maintenance update

* Added Non-Violent Communication (NVC) request screen, to produce a whole set: observation → feeling → need → request
* Added observations & requests to statistics
* Fixed scroll in stats screen to make it smoother.
* In game mode, reveal what killed you.

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

Added an option to delete last entry, as requested by some people. So you don't need to worry anymore about making mistakes when selecting your feelings & needs.

* New stats: needs clustered in 8 categories
* New needs: health, nourishment, tolerance, help, acceptance
* New feeling: bored
* Fixes for Japanese translation

Fixed aspect issues on iPad and made the GameCenter login less intrusive.