Replace UTF-8 characters in s3_cache.py with ASCII characters
Fix wrong indent in .jscs.json
Merge pull request #12010 from ZDroid/wrong-indent

Fix wrong indent in .jscs.json
Update dependencies

Updates grunt-html-validation and grunt-jekyll dependencies.
Merge pull request #12022 from ZDroid/update-deps

Update dependencies
Merge pull request #12009 from ZDroid/no-utf8-py

Replace UTF-8 characters in s3_cache.py with ASCII characters
add Python indentation style to editorconfig; refs #12023