Update peewee to 3.6.0

[pyup-bot]

This PR updates peewee from 3.4.0 to 3.6.0.

Changelog

3.6.0

* Support for Python 3.7, including bugfixes related to new StopIteration
handling inside of generators.
* Support for specifying `ROWS` or `RANGE` window frame types. For more
information, see the new [frame type documentation](http://docs.peewee-orm.com/en/latest/peewee/querying.htmlframe-types-range-vs-rows).
* Add APIs for user-defined window functions if using [pysqlite3](https://github.com/coleifer/pysqlite3)
and sqlite 3.25.0 or newer.
* `TimestampField` now uses 64-bit integer data-type for storage.
* Added support to `pwiz` and `playhouse.reflection` to enable generating
models from VIEWs.
* Added lower-level database API for introspecting VIEWs.
* Revamped continuous integration setup for better coverage, including 3.7 and
3.8-dev.
* Allow building C extensions even if Cython is not installed, by distributing
pre-generated C source files.
* Switch to using `setuptools` for packaging.

[View commits](https://github.com/coleifer/peewee/compare/3.5.2...3.6.0)

3.5.2

* New guide to using [window functions in Peewee](http://docs.peewee-orm.com/en/latest/peewee/querying.htmlwindow-functions).
* New and improved table name auto-generation. This feature is not backwards
compatible, so it is **disabled by default**. To enable, set
`legacy_table_names=False` in your model's `Meta` options. For more details,
see [table names](http://docs.peewee-orm.com/en/latest/peewee/models.htmltable_names)
documentation.
* Allow passing single fields/columns to window function `order_by` and
`partition_by` arguments.
* Support for `FILTER (WHERE...)` clauses with window functions and aggregates.
* Added `IdentityField` class suitable for use with Postgres 10's new identity
column type. It can be used anywhere `AutoField` or `BigAutoField` was being
used previously.
* Fixed bug creating indexes on tables that are in attached databases (SQLite).
* Fixed obscure bug when using `prefetch()` and `ModelAlias` to populate a
back-reference related model.

[View commits](https://github.com/coleifer/peewee/compare/3.5.1...3.5.2)

3.5.1

**New features**

* New documentation for working with [relationships](http://docs.peewee-orm.com/en/latest/peewee/relationships.html)
in Peewee.
* Improved tests and documentation for MySQL upsert functionality.
* Allow `database` parameter to be specified with `ModelSelect.get()` method.
For discussion, see 1620.
* Add `QualifiedNames` helper to peewee module exports.
* Add `temporary=` meta option to support temporary tables.
* Allow a `Database` object to be passed to constructor of `DataSet` helper.

**Bug fixes**

* Fixed edge-case where attempting to alias a field to it's underlying
column-name (when different), Peewee would not respect the alias and use the
field name instead. See 1625 for details and discussion.
* Raise a `ValueError` when joining and aliasing the join to a foreign-key's
`object_id_name` descriptor. Should prevent accidentally introducing O(n)
queries or silently ignoring data from a joined-instance.
* Fixed bug for MySQL when creating a foreign-key to a model which used the
`BigAutoField` for it's primary-key.
* Fixed bugs in the implementation of user-defined aggregates and extensions
with the APSW SQLite driver.
* Fixed regression introduced in 3.5.0 which ignored custom Model `__repr__()`.
* Fixed regression from 2.x in which inserting from a query using a `SQL()` was
no longer working. Refs 1645.

[View commits](https://github.com/coleifer/peewee/compare/3.5.0...3.5.1)

3.5.0

**Backwards-incompatible changes**

* Custom Model `repr` no longer use the convention of overriding `__unicode__`,
and now use `__str__`.
* Redesigned the [sqlite json1 integration](http://docs.peewee-orm.com/en/latest/peewee/sqlite_ext.htmlsqlite-json1).
and changed some of the APIs and semantics of various `JSONField` methods.
The documentation has been expanded to include more examples and the API has
been simplified to make it easier to work with. These changes **do not** have
any effect on the [Postgresql JSON fields](http://docs.peewee-orm.com/en/latest/peewee/playhouse.htmlpgjson).

**New features**

* Better default `repr` for model classes and fields.
* `ForeignKeyField()` accepts a new initialization parameter, `deferrable`, for
specifying when constraints should be enforced.
* `BitField.flag()` can be called without a value parameter for the common
use-case of using flags that are powers-of-2.
* `SqliteDatabase` pragmas can be specified as a `dict` (previously required a
list of 2-tuples).
* SQLite `TableFunction` ([docs](http://docs.peewee-orm.com/en/latest/peewee/sqlite_ext.htmlsqlite-vtfunc))
will print Python exception tracebacks raised in the `initialize` and
`iterate` callbacks, making debugging significantly easier.

**Bug fixes**

* Fixed bug in `migrator.add_column()` where, if the field being added declared
a non-standard index type (e.g., binary json field with GIN index), this
index type was not being respected.
* Fixed bug in `database.table_exists()` where the implementation did not match
the documentation. Implementation has been updated to match the
documentation.
* Fixed bug in SQLite `TableFunction` implementation which raised errors if the
return value of the `iterate()` method was not a `tuple`.

[View commits](https://github.com/coleifer/peewee/compare/3.4.0...3.5.0)

Links

• PyPI: https://pypi.org/project/peewee
• Changelog: https://pyup.io/changelogs/peewee/
• Repo: http://github.com/coleifer/peewee/

[pyup-bot]

Closing this in favor of #81