Fix the build

[tjvr]

• Is Webpack really that great anyway?

• I had to do this locally, to get Phosphorus to play nicely with the tests:

  var P = window.P = (function() {

  We should probably send this patch upstream, or find a workaround that doesn't require doing this (global maybe?)

• We should generally make sure the built output is ready for consumption. Are we building the CSS properly yet, for instance?

[CosmicWebServices]

I am confused why is it not building - IcyCoder