Disable client-only plugin check due to ordering issue

Problem: voxel-client only creates the voxel-engine instance when
the server connection is established, but voxel-plugins loads all
plugins before then. The voxel-engine game instance is not available
at this time.. but the current design for plugins is to pass (game,opts)
where game=the voxel-engine instance. Needs more work.

Ref voxel/voxelmetaverse#26

index.js

@@ -61,7 +61,8 @@ Plugins.prototype.scanAndInstantiate = function(name, opts) {
  var createPlugin = this.scan(name);
 
  if (createPlugin.pluginInfo && createPlugin.pluginInfo.clientOnly) {
- if (!this.game.isClient) {
+ //if (!this.game.isClient) { // TODO
+ if (false) {
  console.log("Skipping client-only plugin ("+name+"), in non-client environment");
  return false;
  }