Async

[hildjj]

This was the only glaring async fix that I found. Note the latest webpack, the needed addition of webpack-cli, and the addition of "production" mode to webpack.config.js.

[coveralls]

Pull Request Test Coverage Report for Build 489

• 4 of 4 (100.0%) changed or added relevant lines in 1 file are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.02%) to 84.119%

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Totals
Change from base Build 486:	0.02%
Covered Lines:	908
Relevant Lines:	1049

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💛 - Coveralls

[fitzgen]

Thanks!