Skeletalanimation fix (#671)

* Fixed anc code cleanup for skeletal animation

Refs #669

* Fix android build

data/shaders/skeletalanimation/mesh.frag

@@ -18,7 +18,7 @@ void main()
 	vec3 L = normalize(inLightVec);
 	vec3 V = normalize(inViewVec);
 	vec3 R = reflect(-L, N);
-	vec3 diffuse = max(dot(N, L), 0.0) * vec3(1.0);// * inColor;
+	vec3 diffuse = max(dot(N, L), 0.1) * vec3(1.0) * inColor;
 	vec3 specular = pow(max(dot(R, V), 0.0), 32.0) * vec3(0.5);
 	outFragColor = vec4(diffuse * color.rgb + specular, 1.0);		
 }