A simple module which produces 'AUTOGENERATED' banner for embedding into generated SQL scripts.

Banner example:
    -- --------------------------- AUTOGENERATED ---------------------------- --
    -- date:    2013-12-17 22:49:22                                           --
    -- origin:  git@github.com:mrsmith/banner.git                             --
    -- pwd:     .                                                             --
    -- cmd:     ./banner.py                                                   --
    -- git-rev: 08daf4b (clean)                                               --
    -- ---------------------------------------------------------------------- --