Fedora 30 : appstream-generator / gir-to-d / glibd (2019-146f3a7d7f)

Update to rebuild against new glib2 and ldc to fix FTBFS in Fedora 30 and make it installable. Also rebuilt against new Meson for execstack fix. Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted t...