make uniform2 work and make webglrenderer again usable

src/renderers/WebGLRenderer2.js

@@ -6151,4 +6151,4 @@ THREE.WebGLRenderer2 = function ( parameters ) {
 
 };
 
-THREE.WebGLRenderer = THREE.WebGLRenderer2;
+//THREE.WebGLRenderer = THREE.WebGLRenderer2;

src/renderers/webgl/renderer.js

@@ -489,7 +489,7 @@ THREE.WebGLRenderer2.LowLevelRenderer = function(parameters){
 	
 	function uniform2f(uniform,value1, value2){
 		
-		_gl.uniform2f( location, value1, value2 );
+		_gl.uniform2f( uniform, value1, value2 );
 		
 	};