Make OCD style changes, no functional changes.
  Use spaces instead of mixed tabs/spaces.
  Use consistent indentation, whitespace.
  Remove commented code.
Functional changes.
  Update version.
  Remove unnecessary dependencies.
  Give correct permissions to influxdb user and login shell.
Merge pull request #2 from charlesbjohnson/upgrade_to_0.5.7

Upgrade to 0.5.7