Django-extensions

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Changes:

- Build: use tox's 'TOXENV' environment variable
- Fix: resetdb, fix problem that 'utf8_support' option is ignored
- Improvement: export_emails, moved custom csv UnicodeWriter (for py2) into compat.py
- Translations: pt, removed since it was causing issues with the builds
if anybody wants to update and fix it that would be
much appreciated !

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UUIDField has been removed after being deprecated.

Deprecation schedule for JSONField has been removed after requests from the
community.

Changes:

- Fix: runserver_plus, fixed Python 3 print syntax
- Fix: sqldiff, Use 'display_size', not 'precision' to identify MySQL bool field
- Fix: export_emails, fix and refactor the command and all its output options
- Improvement: tests, added Python 3.6 and PyPy3.5-5.8.0
- Improvement: clear_cache, add --cache option to support multiple caches
- Improvement: runserver_plus, limit printing SQL queries to avoid flooding the terminal
- Improvement: shell_plus, limit printing SQL queries to avoid flooding the terminal
- Docs: graph_models, document including/excluding specific models
- Docs: shell_plus, added PTPython

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Changes:

- Fix: AutoSlugField, foreignkey relationships
- Fix: shell_plus, supported backends 'postgresql' for set_application_name
- Improvement: various commands, Add syntax highlighting when printing SQL
- Improvement: pipchecker, treat rc versions as unstable
- Improvement: shell_plus, allow to subclass and overwrite import_objects
- Improvement: shell_plus, fix SHELL_PLUS_PRE_IMPORTS example
- Improvement: setup.py, fix and unify running tests
- Improvement: runserver_plus, add RUNSERVERPLUS_POLLER_RELOADER_TYPE setting
- Improvement: generate_secret_key, use algorithm from django
- Docs: fix grammar and spelling mistakes

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Changes:

- Improvement: django 1.11, add testing for Django 1.11
- Improvement: pipchecker, make it possible to parse https github urls
- Improvement: unreferenced_files, make command much faster by using set()
- Docs: add undocumented commands
- Docs: shell_plus, additional documentation for referencing nested modules
- Fix: sync_s3, fix exclusion of directories
- Fix: runprofileserver, fix ip:port specification
- Fix: runprofileserver, support --nothreading

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Changes:

- Improvement: admin_generator, use decorator style for registering ModelAdmins.
- Improvement: sqldiff, quote tablename for PRAGMA in sqlite
- Fix: graph_models, Fix `attributes` referenced before assignment
- Fix: pipchecker, Fix AttributeError caused by missing method

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Changes:

- Improvement: sqldiff, ignore proxy models in diff (with cli option to include them if wanted)