Update django-extensions to 1.7.7

[pyup-bot]

There's a new version of django-extensions available.
You are currently using 1.7.3. I have updated it to 1.7.7

These links might come in handy: PyPI | Changelog | Repo | Docs

Changelog

1.7.7

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Changes:

• Improvement: admin_generator, use decorator style for registring 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

1.7.6

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Changes:

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

1.7.5

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Changes:

• New: ForeignKeyAutocompleteAdmin, Add autocomplete for inline model admins
• Improvement: graph_models, Rewrite modelviz module from method to class based processor
• Improvement: db fields, make MAX_UNIQUE_QUERY_ATTEMPTS configurable per field and via settings
• Improvement: runserver_plus, Added nopin option to disable pin
• Fix: graph_models, Support PyDot 1.2.0 and higher
• Fix: shell_plus, Fix that aliases from SHELL_PLUS_MODEL_ALIASES were not applied
• Removed: validate_templatetags, remove support for pre django-1.5 style {% url %} tags
• Cleanup: removing support for end-of-life Python 3.2
• Docs: simplify installation instructions
• Docs: fix example for NOTEBOOK_ARGUMENTS
• Docs: Remove extraneous '}' characters from shell_plus docs

1.7.4

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Changes:

• Improvement: show_urls, support --no-color option
• Fix: notes, Fix reading templates setting after django 1.8
• Fix: create_app, Fixed typo in deprecation warning
• Fix: shell_plus, Use new location for url reverse import
• Docs: some commands where missing from the docs
• Docs: runscript, added documentation for --traceback

Got merge conflicts? Close this PR and delete the branch. I'll create a new PR for you.

Happy merging! 🤖

[pyup-bot]

Closing this in favor of #202