• Update to 1.3.23
• Convert to new options helper
• Convert to new options dependency helper
• Convert to new test framework
• Sort LIB_DEPENDS
• Sort CONFIGURE_ARGS
• Use PORTDATA and PORTDOCS
• Remove PORTSCOUT
• Cosmetic change
• Update pkg-descr
• Take maintainership

Changes: http://www.graphicsmagick.org/NEWS.html