Log Message:
Update to 0.1.2:

libmspub 0.1.2

- Check arguments of public functions. Passing NULL no longer causes
  a crash.
- Use symbol visibility on Linux. The library only exports the two public
  functions now.
- Fix several crashes and hangs when reading broken files, found with the help
  of american-fuzzy-lop.
- Add support for embedded fonts.
- Add initial support for tables.
- Parse document metadata.