Grain Science updated

Grain Science moves up to iOS 6 and the iPhone 5 and adds some new features at the same time:

• Updated for iOS 6
• Updated to take advantage of larger iPhone 5/iPod touch (5th generation) screen
• New: Custom reverb mode: direct control over reverb unit parameters
• New: Custom piano key sizes
• New: MIDI damper pedal (sustain) support
• Fix: Crash that could occur when using the Performance Panel to reselect the current instrument
• Fix: Minor graphical & UI issues