Breaking changes: retire context mover support, change db-facts config (breaking)

Breaking changes:

• Import latest db-facts, which renames an entry from db_connect_method to exports_from in db-facts config: bluelabsio/db-facts#23 (#60)
  • Please update your records-mover with pip3 install --upgrade records-mover in your virtualenvs to make sure your code matches the new config format once your config is updated.
• Remove context manager support in move() (Breaking change) (#52)
  • Please update your move() statements to remove any with statements around the sources and targes - see this example for a valid use.

New features:

• Provide simplified way to get directly to sources/targets/move() without Session (#54)

Bug fixes / reliability improvements:

• Improve tests and fix bugs related to unhandled_hints (#51)

Other updates:

• Move files around to clean up root directory in GitHub (#62)
• Import records and records schema specs to docs/ directory (#59)