Add werckerignore file
Add werckerignore file

wercker now supports an ignore file used when adding files to the container
https://github.com/wercker/wercker/pull/222

This file ignores enaml .cache folders and the vendor directory (which
is populated by glide inside of the container).

By ignoring the vendor directory, testrunner went from 2m07s
to 1m07s on my machine - almost twice as fast!

enaml-ops/omg-product-bundle,enaml-ops/omg-product-bundle