This is an internal method
Move fail into shutit object
Slight tweaks to setup_prompt
Remove useless revert prompt from mysql
This is done automatically now
Use send_file instead of lots of add_line_to_file in mysql
This import is no longer needed
Remove all references to handle_login, discourage revert_prompt
Move all deprecated functions to bottom of util
Tagging and pushing is part of container finalization
Use variables
Setup can now be configured (at own risk)