Jacques Distler

Support grabbing TeX source from MathML <annotation>s

1

FeedParser changes might be better applied to latest FeedParser. But I see that's already a separate pull request.

Restore support for MacOS < 10.15

1

Commit ccc753d removed support for MacOS < 10.15 because of the use of `aligned_alloc`. This *could* be worked around by ~~~~~ #if PRE_HIGH_SIERRA posix_memalign((void **) &buf, alignof(struct mbuf_block), size); #else...