Merge pull request #13 from Callum-/master

Made some changes to the light
Specular Whiteness and Light Reduction

Added specular light tending towards white.  Also added an improved and
more accurate calculation for light reduction with distance
Added Comments
Toned down distModifier1
Fixed distModifier
More Light Brightness
Thingy
Attempted fix for ground
More Attempted fixing
Accidentally forgot vec3()
And again
Didn't Work
Texture Scaling