v5.1.0

New features:

• Experimental support for local subsetting using harfbuzzjs (subfont --harfbuzz), avoiding the dependency on Python (#56)
• Self-host the fallback CSS and fonts for Google Fonts (#116)
• Also report the number of code points used on each page when subsetPerPage is false (#114)
• Make all subsets available on every page where the original font is in scope, helping with server-side rendered Gatsby sites (#111)

Bugfixes:

• Sort the code points numerically before converting to unicode ranges (#107)
• Sometimes failing to get the woff2 written by pyftsubset (2abac1a)
• Convert Google fonts to woff/woff2 locally, avoid "Missing glyph fallback detected" error when generating a big subset (#115)