0.7.0

• Add vault lookup-token (#77)
• Remove client.get_all() (after deprecation period)
• Add template values and --render features in client and cli (#65)
• Add possibility to customize environment variable names in vault env using
  --path path/to/keys=myprefix
• Support absolute path (starting with /): in this case we don't prepend
  the base_path to the path parameter
• Add vault --version (#84)