make internal script paths relocatable

BUG=b:20895978

Change-Id: I3e80a9606dc17c7e57e0c3d84651d8e160ccba27
53 files changed
tree: b46eab7798d9413b5e1eef3c7b4edc8f75305faf
  1. .gitignore
  2. etc/
  3. usr/
  4. wrapper.py