Aa-srp

Added

- Better handling for Discord messages (Prioritise `discordproxy` over
`allianceauth-discordbot` when both are installed)
- Embedded Discord messages to the SRP team channel, when `discordproxy` is installed

Fixed

- Import from a module that might not even be there at all, which could have
resulted in Discord PMs not being delivered

Added

- Access tests

Changed

- Some minor code optimisations

Fixed

- Access for users with `manage_srp_requests`

Added

- Discord PMs on SRP accept/reject when `discordproxy` is installed as stand-alone,
without `aa-discordnotify`

Changed

- JavaScript: `const` instead of `let` where ever appropriate
- Minimum requirements
- Alliance Auth v2.9.4

Added

- Workaround for possible bug in AA-Discordbot (41)

Changed

- General code cleanup and modernization
- Switched to Alliance Auth App Utils for some helper functions

Removed

- Non-used code

Changed

- Minimum requirements
- Python 3.7
- Alliance Auth v2.9.3

Fixed

- AttributeError ('NoneType' object has no attribute 'id') when, for whatever reason,
the ship type has been removed from the `EveType` table

Added

- Versioned static files to prevent browser cache related errors on app updates

Changed

- Minimum requirements for:
- Alliance Auth (>= 2.9.0)
- Django Eveuniverse (>= 0.8.2)
- Python (>= 3.7)