Cloudpathlib

- Fixed `glob` and `rglob` functions by using pathlib's globbing logic rather than fnmatch. ([Issue 154](https://github.com/drivendataorg/cloudpathlib/issues/154))
- Fixed `iterdir` to not include self. ([Issue 15](https://github.com/drivendataorg/cloudpathlib/issues/15))
- Fixed error when calling `suffix` and `suffixes` on a cloud path with no suffix. ([Issue 120](https://github.com/drivendataorg/cloudpathlib/issues/120))
- Changed `parents` return type from list to tuple, to better match pathlib's tuple-like `_PathParents` return type.
- Remove support for Python 3.6. [Issue 186](https://github.com/drivendataorg/cloudpathlib/issues/186)

- Fixed error when "directories" created on AWS S3 were reported as files. ([Issue 148](https://github.com/drivendataorg/cloudpathlib/issues/148), [PR #190](https://github.com/drivendataorg/cloudpathlib/pull/190))
- Fixed bug where GCE machines can instantiate default client, but we don't attempt it. ([Issue 191](https://github.com/drivendataorg/cloudpathlib/issues/191)
- Support `AWS_ENDPOINT_URL` environment variable to set the `endpoint_url` for `S3Client`. ([PR 193](https://github.com/drivendataorg/cloudpathlib/pull/193))

- Fixed error where `BlobProperties` type hint causes import error if Azure dependencies not installed.

- Fixed error when using `rmtree` on nested directories for Google Cloud Storage and Azure Blob Storage. ([Issue 184](https://github.com/drivendataorg/cloudpathlib/issues/184), [PR #185](https://github.com/drivendataorg/cloudpathlib/pull/185))
- Fixed broken builds due mypy errors in azure dependency ([PR 177](https://github.com/drivendataorg/cloudpathlib/pull/177))
- Fixed dev tools for building and serving documentation locally ([PR 178](https://github.com/drivendataorg/cloudpathlib/pull/178))

- Fixed error when importing `cloudpathlib` for missing `botocore` dependency when not installed with S3 dependencies. ([PR 168](https://github.com/drivendataorg/cloudpathlib/pull/168))

- Fixed absolute documentation URLs to point to the new versioned documentation pages.
- Fixed bug where `no_sign_request` couldn't be used to download files since our code required list permissions to the bucket to do so. ([Issue 169](https://github.com/drivendataorg/cloudpathlib/issues/169), [PR #168](https://github.com/drivendataorg/cloudpathlib/pull/168)).