libwmf 0.2.13

release with fixes for:

• #2
• #4

libwmf 0.2.11

fix abi

libwmf 0.2.11

Release to address CVE-2019-6978

libwmf 0.2.10

coverity, clang and shellcheck warning free

libwmf 0.2.9

v0.2.9

fix shellcheck warnings