Import Japanese translation of "Garbage Collection"
Import the Japanese translation of "Performance and Profiling"
Import Japanese translation of "Common Error Messages"
Import Japanese translation of "OCaml and the Web"
Import Japanese translation of "Standard Library Examples"
Import Japanese translation of "Compiling OCaml projects"
Import Japanese translation of "Command-line arguments"
Import Japanese translation of "File manipulation"

This completes the import of Japanese translations.