Bug 1066264 - Refactor update.py: Move contents of pre_update() inline
Bug 1066264 - Refactor update.py: Move contents of update() inline
Bug 1066264 - Refactor update.py: Clean up comments
Bug 1066264 - Refactor update.py: Move contents of deploy() inline
Bug 1066264 - Refactor update.py: Remove unnecessary wrapping
Merge pull request #214 from mozilla/deploy-script-refactor

Bug 1066264 - Refactor update.py