Fix lazy loading of components.

[ryanpcmcquen]

Closes https://github.com/DeloitteDigitalAPAC/react-habitat/issues/28.

[ryanpcmcquen]

I did not run the built-in tests yet, but locally this fixes lazy loading, as you can see by the *.bundle.js loading in these screenshots:

Loads three bundles (three components on page):

Loads one bundle (one component on page):

[jennasalau]

Thanks for your efforts on this one Ryan, really appreciate it!!.

I will merge into a branch and fix the tests.

[ryanpcmcquen]

@jennasalau, thank you! I had started trying to fix the tests, but realized I didn't really know what I was doing. :rofl: