support spaces in module names
support spaces in module names

jrauschenbusch/builder,systemjs/builder,whitneyit/builder,alexisvincent/builder,whitneyit/builder,systemjs/builder,lookfirst/builder,alexisvincent/builder,jrauschenbusch/builder,systemjs/builder,jrauschenbusch/builder,lookfirst/builder,alexisvincent/builder