- update to 0.28.0
* Update spec.
* Use unsigned integer when shifting
* Avoid memcpy'ing NULL pointers
* DeMorgan simplification of some tests in emphasis parser.
* Fixed undefined shift in commonmark writer
* latex writer: fix memory overflow
* Check for NULL pointer in get_link_type
* Move fuzzing dictionary into single file
* Reset bytes after UTF8 proc
* Don't scan past an EOL
* Document cases where `get_` functions return `NULL`
* Properly handle backslashes in link destinations
* Fixed `cmark_node_get_list_start` to return 0 for bullet lists,
as documented
* Use `CMARK_NO_DELIM` for bullet lists
* Fixed code for freeing delimiter stack
* Removed abort outside of conditional (typo).
* Removed coercion in error message when aborting from buffer.
* Print message to stderr when we abort due to memory demands
* `libcmark.pc`: use `CMAKE_INSTALL_LIBDIR`
* Fixed buffer overflow error in `S_parser_feed`
* Update emphasis parsing for spec change.
* Fixes for the LaTeX renderer
+ Don't double-output the link in latex-rendering.
+ Prevent ligatures in dashes sensibly when rendering latex.
`\-` is a hyphenation, so it doesn't get displayed at all.
* Added a test for NULL when freeing `subj->last_delim`.
* Cleaned up setting of lower bounds for openers.
* Fix #178, quadratic parsing bug. Add pathological test. (forwarded request 528141 from mimi_vx)