Fix source-map option in production environment

[josh]

webpack-config-github/webpack.config.js

Lines 98 to 99 in 1ae512d

	// TODO: Fix source-map option in production environment
	config.devtool = env === 'production' ? false /* 'source-map' */ : 'inline-source-map'

config.devtool = 'source-map'

is crashing for some reason.

CC: @koddsson

[koddsson]

Seems to be a issue with the babel minify webpack plugin.