text: Title: [local-volume] provisioner e2e test fails with v2.0.0 image for provisioner
  Body: 
  **Is this a BUG REPORT or FEATURE REQUEST?**:
  
  /kind bug
  
  **What happened**:
  
  The local-volume bootstrapper/provisioner configuration format changed in
  kubernetes-incubator/external-storage#352, and its related e2e tests will fail when the provisioner & bootstrapper images are updated to v2.0.0.
  
  **What you expected to happen**:
  
  I'd expect the e2e tests to continue to work properly with the new version of the provisioner and boostrapper.
  
  **How to reproduce it (as minimally and precisely as possible)**:
  
  Update local-volume provisioner and boostrapper images to v2.0.0, and then the provisioner e2e test will fail.
  
  