fix(client): log python requests errors
fix(tests): add docs for local testing with s3cmd
fix(router): reload nginx after enabling SSL
fix(contrib): use absolute path to user-data

if you run the rackspace provision script outside of contrib/rackspace,
it will fail because it will look for a user-data file relative to
your current working directory. Using $CONTRIB_DIR to determine where
the user data is located fixes this.
Merge pull request #2641 from bacongobbler/rackspace-contrib-dir

fix(contrib): use absolute path to user-data
Merge pull request #2632 from carmstrong/s3cmd_docs

fix(tests): add docs for local testing with s3cmd
Merge pull request #2638 from carmstrong/fix-controller_ssl

fix(router): reload nginx after enabling SSL
Merge pull request #2628 from mboersma/log-request-errors

fix(client): log python requests errors
feat(*): provision using CoreOS stable channel