Spyne

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* Fixed inclusive ranges for DateTime and friends. 506
* Turns out SQLAlchemy 1.1 causes funky crashes. We're fixated on 1.0 until
the issue can be investiaged.
* Implemented MIN_GC_INTERVAL to prevent excessive calls to ``gc.collect()``
See issue 472. PR: 515

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* Dang.

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* Return to pre 2.12 behaviour - coroutine exceptions are not silenced but
sent up the stack. This is backport of 2.13 fix.
* Proper serialization of ComplexModels subclasses of other ComplexModels
when initialized from lists.
* Minor bug fixes all around.

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* Fix self-referential relationships pointing the wrong way
* Fix wrong use of string interpolation operator in logging call slowing Spyne
down for no visible reason
* Detect and prevent name clashes between the foreign key column name and the
object itself.
* Silence a lot of (wrong) customized class instantiation warnings.

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* IpAddress types now support PostgreSQL's PGInet.
* Drop trial for twisted tests and switch to pytest-twisted.
* ``_safe_set`` now returns True on success so that protocols can react
accordingly.
* \*DictDoc now logs properly whether a value is discarded or passed to the
deserialized instance.
* Minor bug fixes here and there.

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* Make ``DateTime`` handle unicode date format strings for Python 2.
* Fix idle timer not starting on connectionMade for ``MessagePackTransportBase``