Upgraded dependencies

Upgraded dependencies

Dropped support for python3.5

See the changelog for details: https://github.com/edx/opaque-keys/blob/master/CHANGELOG.rst

Fixed Django 3.0 warnings

Fixed Django 3.0 warnings

Added Python 3.8 compatibility

Added Python 3.8 compatibility
Removed testing for django < 2.2

setup.py now properly uses requirements files

• Some internal reorganization of how requirements are structured, including the [django] extra
• Dependency upgrades
• Lower number of Hypothesis samples to keep build times viable

Added Support for Django 2.2

Merge pull request #113 from edx/BOM-1017-Upgrade

bumped up the package version

1.0.0

• Remove to_deprecated_string and from_deprecated_string API methods
• Support OpaqueKeyField lookups by string
• Support more recent versions of the hypothesis Python module
• Support Python 3.6 instead of 3.5

Corrected requirements pinning

Merge pull request #73 from edx/requirements-fix

Pinning requirements

Python 3.5 Supported

This release includes the following:

• Python 3.5 now supported
• Test framework switched from unittest to pytest

Backward compatibility and robustness fixes

Ensure drivers loaded for parsing deprecated strings before failing parsing.
Handle the short-lived slashes and locations syntax for parsing.