I've just updated the Actions gdf files and added files for Actions 3: Furious Fists and Actions 4: Specialists. This includes all of the Martial Arts abilities in Furious Fists as well as all six of the Character Templates and 180+ Skill Set Lenses from both books.
You can download all currently available updated data files here:
http://gurpsland.no-ip.org/GCA4/FixedFiles.zip