Used AddMixingTransform to blend punch and shoot animations with walk/run.

* Added `layer` and `blendMode` properties to the `punch` and `shoot` anims in
  `SideScrollCharacterAnimation.js`. Also utilize the `AddMixingTransform()`
  function in order to add a mixed animation on the `torso` in order to mix the
  animations with the walk and run cycles.
* Removed the restrictions on the punch and shoot animations in order to allow
  punching and shooting while walking/jumping/etc.
* Deleted unused file, `testScene`
Merge pull request #19 from CoryG89/master

Adding animation mixing for punch and shoot animation using AddMixingTransform()
Adding saved scene file
Merge pull request #20 from CoryG89/master

Adding saved scene file
Adding option to change direction mid air.
Merge pull request #21 from CoryG89/master

Adding option to change direction mid air.
Updating SideScrollController to rotate toward z=0 path as it strays off of it, also improving enemy controller to only move on z=0. Adding free assets from the Unity Asset Store.
Refactoring JetPackParticleController and SideScrollController for easy implementation of pickup system integration later. Added a turret model and some other assets.
Adding turret prefab and cleaning up directory.
Merge pull request #22 from CoryG89/master

Adding turret prefab and cleaning up Solobot directory.
Adding fixed TurretController script, adding spikebed which is currently only using the FalloutDeath script, custom spike bed model.
Various organization among the Solobot directory, moving scripts and other used game objects to the Solobot directory from the 3rd Person Tutorial directory. Refactoring some scripts.
Refactoring and making it easy to customize the TurretController script settings from within the editor.
Merging GameHUD code and DemoLevel scene
Minor changes to Respawn.js
Adding various refactorings to various scripts, fixing the respawn/checkpoint system
Merge pull request #23 from CoryG89/master

Merging April 15, Monday changes to the main repo after thorough testing.
Adding MainMenu, GameOver, and YouWin scenes. Adding some more respawns and a 'final' respawn.
Fixed a lot of precision in the level geometry. Applied the normal map shader to the platforms and unsquashed some of their textures.
Moved the `Textures` directory out of the `Materials` directory up one level to the `Solobot` directory.
Merge pull request #24 from CoryG89/master

Adding Menu and Fixing Level Geometry Commits