Log Message:
Update to 0.16

Upstream changes:
0.16 2020-05-12 dmol@cpan.org
 - fix cpan-testers failures
 - fix C++ usages instead of C

0.15 2020-05-11 dmol@cpan.org
 - fix tests for RT#132543

0.14 2020-05-11 htl10@users.sourceforge.net
 - update glyph->load method()