Add MainMenu script for creating MainMenu GUI
Add MainMenu GUISkin for MainMenu
Add Menu folder Unity meta file
Add MainMenu scene

This is a duplicate of Level01, but without the Player prefab and the Camera is
spinning on the spot.
Add generic black background
Add black ground to boxes in MenuGUISkin
Update MainMenu script to display Black background
Add black background to MainMenu scene
Add levels to build settings, to load throughout the game
Load the first level, when clicking start
Add LeaMotion library for hand gesture controls in MainMenu

- Requires Screen values to be specified by Library name; hence `UnityEngine.Screen`
Wave to begin the game
Remove WaveHand script from Non-Player Ship in MainMenu
Add Bubble object to assets

Sourced:
- http://forum.unity3d.com/threads/soap-bubble-shader.179374/
Exit AudioInput script if no microphone
Apply a force to the rigid body of spawned by loudness game object
Add PopBubble script to destroy spawned object after 5 seconds
Add Pop bubble script to Bubble prefab
Find Logitech USB Microphone by default

- Can be overridden in the Unity Editor
Add BubbleSpawner to Main camera in MainMenu scene to blow bubbles