Viur-core

- Added [`CONTRIBUTING.md`](CONTRIBUTING.md)
- Use setuptools' install_requires from requirements.txt (475)
- Implement `errors.TooManyRequests` exception (463)
- Improved logging to cope with the new logviewer (461)
- Added ratelimit to login with username/password (455)
- Providing a `SortIndexBone` (446, 453)
- Unit test suite starting with bones (432, 466)
- Ported `IndexMannager` (sic!) and renamed to `Pagination` (481)
- Hint when `conf["viur.debug.traceExceptions"]` is set (480)
- Customizable ViurTagsSearchAdapter (474)
- Use of 4-spaces instead of tabs for PEP8-conformity (470)
- Remove unused parameter in doClearSessions (468)
- Improved logging to cope with the new logviewer (461)
- Improve docstrings and type hints (458)
- Add support for `Literal` type annotations in processTypeHint (457)
- Fix docs logo and improve maintainability of CSS (445)
- Fixing file module (454)
- Remove keysOnly argument from some queries and remove unused cursor (449)
- Remove the unused cursor parameter in doClearSKeys (438)
- PEP8-compliant naming of Bone classes (435, 452, 471)
- Fixed missing `import copy` in KeyBone (482)
- Fixing empty string routing to exposed functions (479)
- Allow removing a bone in a subclass by setting it to None (472)
- Fix downloadURLs with special characters `(`, `)` or `=` inside of filenames (467)
- Fixed uploading files using pre-signed calls to getUploadURL (465)
- Fixed restoring relations in edit if the referenced entity has been deleted (460)
- Fixed seoKey handling in skeletons and fixed seoURLtoEntry (459)
- Use of original filename when a file is downloaded (451)
- Fixed treeNodeBone enforcing "_rootNode" suffix on it's kind (444)
- Fixed required=True bones could still be set empty if omitted from the postdata (440)
- Removed dbtransfer and its usage (477)

- Fix unused language parameter of `utils.seoUrlToEntry()` (439)
- Subdependencies updated (442)
- Remove class `errors.ReadFromClientError`. Replaced by the new dataclass `bones.bone.ReadFromClienError`. (437, 443)

- Re-enabled getEmptyValueFunc-parameter for baseBone (without mispelling)
- Fixed textBone to be indexed=False by default
- Cleaned up some code in baseBone.__init__()

- Manage version number in `version.py` for usage both as `__version__` and in setup.cfg (430)
- Refactoring all bone-related `__init__` functions (426)

- Updated viur-datastore to v1.2.2
- Serializing stringBones with languages without prior fromClient call (421)
- Fixed seoKeyBone failing to serialize if no languages has been set on the project (422)

- `viur.db.engine` config variable to inject different database drivers
- `viur.render.json.downloadUrlExpiration` config variable to specifiy the expiration of downloadUrls generated by JSON render
- Global jinja2 function "translate" for instances where compile-time resolving is not possible
- Passing getEmptyValue() in the structure definition in json-render
- Support for srcsets in textBone
- `language` paramater in `BaseSkeleton.setBoneValue()`
- Support for pypi packaging
- Re-Added translation() jinja2 function
- get() function to skeleton
- Support for overriding the fileName under wich a blob will be downloaded
- Implement baseSkel for all module prototypes (378)
- Replaced viur.core.db by viur-datastore (400)
- selectBone() values accept for list, tuple or callable (390)
- Improve SEO url integration: refactoring and redirect from old keys to the current
- Allow sec-fetch-site=same-site on local development server
- Set parentnode and parentrepo before fromClient() (402)
- files embedded in textBones don't expire anymore and get correctly locked
- Several issues in randomSliceBone
- Recursive deletion in modules/file.py
- deleteRecursive function in tree-prototype
- killSessionByUser function
- Fixes on the Tree prototype (381)
- Fixed deferred calls with _countdown set failing when called from a cronjob (403)
- Fixed unique=True on multiple=True relationalBones (401)
- `setBoneValue` works now for multiple and (multiple and language) bones (410)
- default `defaultValue` for multiple and language `selectBone`
- randomSliceBone with limit=1 returning no result
- ratelimit module
- setBoneValue to allow setting back to empty
- Adding unique=True to existing skeletons
- Logins with second factor
- conf['viur.debug.traceQueries'] flag. It has to be set on the viur-datastore config (viur.core.db.config["traceQueries"]).
- the unused `skel` parameter from singleValueUnserialize