python 0.17.0-rc.1

0.17.0-rc.1

Breaking Changes

• The calibration program is now from
  get_quilt_calibrations as a string. The error variants have also been
  slightly modified.

• simplify error map

• cleanup test

• put calibration in mock calibration program

Features

• Automatically retry requests that fail due to transient network errors

Fixes

• Requests to cancel job no longer error due to missing target. (#443)