Merge pull request #31 from bbrouse/level_design

Level design
Updated placement script to translate tetrominos relative to the normal of the surface you're looking at.  Updated scene.
Updated placement manager.
Updated scene.
Added main menu
Merge pull request #32 from bbrouse/bbrouse_issue_16

Added main menu
Fixed bug where you could rotate a shape into the ground while looking at an -edge- and be allowed to place it.
concluding merge
Added main menu scene and changed build settings
Merge pull request #33 from bbrouse/bbrouse_issue_16

Added main menu scene and changed build settings
Merge branch 'master' of https://github.com/bbrouse/shapesmith
Added Level_3 scene.  Fixed prefab settings for tets.  Added 1x1 envCube mat.  Disabled VSync in quality settings.
For some reason the 1x1 mat didn't push up
Made level 3
Added some more things to Level 3, updated quality settings.
Added Level 3 with moving platform
Merge pull request #35 from bbrouse/bbrouse_issue_9

Added Level 3 with moving platform
Added numbers to main menu.  Fixed debug restart.  Added green goal prefabs to main menu.
Added all win/lose logic to level 1.  Created fall death trigger prefab. Added more gui text.
Added win/lose logic to level 2.  Added GUI prefab for text.