Hook grafana and rubygem-feedjira to the build
- Convert graphics/libwmf to USES=libtool and bump dependent ports
- Add INSTALL_TARGET=install-strip
- Add USES=libtool and INSTALL_TARGET=install-strip
- Convert some dependencies to USE_GNOME
- Fix gettext detection with CPPFLAGS/LIBS
Remove trailing slash to pass make check-plist