Revert "Merge pull request #8 from gaye/bump-marionette-helper"

This reverts commit 40129e5319d6d0be7525c3d19c1f1558ddca4dae, reversing
changes made to 4e9a2e8c28ef19807580e783306b2a7b0136b8e6.
Merge pull request #9 from gaye/revert-bump-marionette-helper

Revert "Merge pull request #8 from gaye/bump-marionette-helper"