Using travis-buddy::install for binary downloading
Silencing the output of the berks install
Can't use berkshelf in travis, changing some things around

travis-buddy is no longer an explicit dependency and was also removed
from the tests.  ignoring the support files was chagned from a resource
attribute to a node attribute for spec stubbing purposes
Removing no-longer-used s3-download-tarball file
Merge pull request #4 from modcloth-cookbooks/using-travis-buddy

Using travis-buddy::install for binary downloading