Fix /mapreduce/pipeline to properly ZipImport

Test Plan:
Craig's review
(ZipImport's only happen in production, so hard to test locally)

Reviewers: csilvers

Differential Revision: http://phabricator.khanacademy.org/D2281
1 file changed
tree: b1a9f108c79a7785cb4bfa5d915238d52208056a
  1. java/
  2. python/
  3. .gitignore
  4. LICENSE
  5. README