Cleanup line endings (#245)

The exact commands to make this commit were:

git reset --hard origin/master
find -type f |  # list all regular files
  grep -E '\.(h|cpp|fsh|vsh|mm)|LICENSE$' |  # filter for text files
  xargs -n 1 -P $(nproc) sed -i 's:\s*$::'  # for each file, trim trailing whitespace including the CR
git commit -a

media/Shaders/COGLES2TransparentAlphaChannelRef.fsh

@@ -52,7 +52,7 @@ void main()
 
 	if (Color.a < uAlphaRef)
 		discard;
-		
+
 	Color += vSpecularColor;
 
 	if (bool(uFogEnable))