Update docs for new voxel-engine-stackgl replacement for game-shell-voxel. Closes GH-2

Author: deathcap

README.md

@@ -1,6 +1,6 @@
 # voxel-wireframe
 
-Shows a wireframe around the voxels in [game-shell-voxel](https://github.com/deathcap/game-shell-voxel)
+Shows a wireframe around the voxels in [voxel-engine-stackgl](https://github.com/voxel/voxel-engine-stackgl)
 
 ![screenshot](http://i.imgur.com/gbooPeT.png "Screenshot")
 

wire.js

@@ -18,7 +18,7 @@ module.exports.pluginInfo = {
 function WireframePlugin(game, opts) {
   this.game = game;
   this.shell = game.shell;
-  if (!this.shell) throw new Error('voxel-wireframe requires game-shell-voxel');
+  if (!this.shell) throw new Error('voxel-wireframe requires voxel-engine-stackgl');
 
   this.shaderPlugin = game.plugins.get('voxel-shader');
   if (!this.shaderPlugin) throw new Error('voxel-wireframe requires voxel-shader plugin');