OpenMDAO/OpenMDAO-Framework — pull request #1566 by naylor-b (2014-01-14 21:49:57+00:00)
Title: update to the derivatives API

- added list_deriv_vars()
- removed linearize()
- changed provideJ to (optionally) return J. input and output var lists are now returned by list_deriv_vars() instead.
- added missing_deriv_policy enum to Component. It determines behavior when a Component has some analytical derivatives but some are missing. Options are 'error', the default, and 'assume_zero'.