pywb 2.6.8 release

A bug fix release with numerous fixes, as described below.

What's Changed

• Upgrade webassets to v2.0 by @m4rk3r in #730
• Encoding image 'srcset' value including the intrinsic width by @yasarkunduz in #712
• Prevent jinja2 from escaping HTML markup in collection metadata by @tw4l in #747
• Increase uwsgi_buffer_size for nginx config by @edsu in #716
• Add missing translation for the filter-epression field placeholder by @krakan in #721
• Activate field validation when expanding the advanced options by @krakan in #722
• S3 loader to use boto3 built-in credential configuration by @sebastian-nagel in #723
• describing installation using pip by @sepastian in #726
• Add missing org/image to docker run commands by @heyvito in #733
• Format error messages by @edsu in #737
• Ensure CDX status is a string by @edsu in #739
• Improve replay banner's accessibility by @lwrubel in #742
• Revisit headers load fix by @ikreymer in #751
• Enable translation for the remaining strings on the search results page by @krakan in #752
• revisit of redirect optimization: by @ikreymer in #753
• proxy: add COEP header for proxy mode to avoid errors by @ikreymer in #755
• tests run improvements: update from python setup.py test -> tox by @ikreymer in #754
• rewrite: detect edge-case where html starts with bom followed by @ikreymer in #758
• tests options: add PYWB_NO_VERIFY_SSL env var for tests to avoid fail… by @ikreymer in #760
• rewriting fix: twitter video in embedded tweets by @ikreymer in #761
• Add ir_ modifier by @ikreymer in #759

New Contributors

• @yasarkunduz made their first contribution in #712
• @edsu made their first contribution in #716
• @krakan made their first contribution in #721
• @sepastian made their first contribution in #726
• @heyvito made their first contribution in #733
• @lwrubel made their first contribution in #742

Full Changelog: v-2.6.7...v-2.6.8