better hook failure messages
better hook failure messages

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