0.9.6

• Changed acceptance API to make it both less verbose and
  more expressive:

  • Consolidated specific-instance and class-based acceptances
    into a single interface.

  • Added a new accepted.tolerance() method that subsumes the
    behavior of accepted.deviation() by supporting Missing and
    Extra quantities in addition to Deviation objects.

  • Deprecated old methods:

    Old Syntax	New Syntax
    accepted.specific(...)	accepted(...)
    accepted.missing()	accepted(Missing)
    accepted.extra()	accepted(Extra)
    NO EQUIVALENT	accepted(CustomDifferenceClass)
    accepted.deviation(...)	accepted.tolerance(...)
    accepted.limit(...)	accepted.count(...)
    NO EQUIVALENT	accepted.count(..., scope='group')

    Other methods--accepted.args(), accepted.keys(), etc.--remain
    unchanged.

• Changed validation to generate Deviation objects for a broader
  definition of quantitative values (like datetime objects)--not
  just for subclasses of numbers.Number.

• Changed handling for pandas.Series objects to treat them as
  sequences instead of mappings.

• Added handling for DBAPI2 cursor objects to automatically
  unwrap single-value rows.

• Removed acceptance classes from datatest namespace--these were
  inadvertently added in a previous version but were never part
  of the documented API. They can still be referenced via the
  acceptances module:

  from datatest.acceptances import ...