Cleaned up the shaders. Backwards compatibility with Unity 5.3.0f4.

[Henry00IS]

• Cleaned up the source code of all of the shaders (edit: indentation and line breaks only).
• Removed warnings about "There are inconsistent line endings".
• Took care of "Upgrade NOTE: replaced 'mul(UNITY_MATRIX_MVP,)' with 'UnityObjectToClipPos()'"

[sabresaurus]

The reason I haven't committed these files before is I''m not sure these shaders will compile on Unity 5.0 (our min spec). I'll install Unity 5.0 again and double check

[Henry00IS]

I installed Unity 5.0.0f4 from March 2015 and barely anything compiles. There are many C# errors. I figured perhaps you meant the 5.x series in general?

As we have UNITY_5_3_OR_NEWER comments I then tried Unity 5.3.0f4 from December 2015. I provided an implementation of Vector2Int and fixed the shaders (and a couple more small C# errors), you were right. So now our minimum version is 5.3.0f4.