Log Message:
serd: Update to 0.30.6

serd (0.30.6) stable;

  * Fix various minor warnings and other code quality issues
  * Improve reader error handling
  * Make all free functions tolerant of NULL
  * Parse prefixed names more strictly

 -- David Robillard <d@drobilla.net>  Sun, 27 Sep 2020 10:51:38 +0000