fixes #5

AMOS BEGIN
 MOV [doimport,mod_book],[doimport,booktool_importhtml]
 MOV [import,mod_book],[import,booktool_importhtml]
 MOV [book:importhtml,mod_book],[importhtml:import,booktool_importhtml]
 MOV [importinfo,mod_book],[importinfo,booktool_importhtml]
 MOV [importing,mod_book],[importing,booktool_importhtml]
 MOV [importingchapters,mod_book],[importingchapters,booktool_importhtml]
 MOV [import_help,mod_book],[import_help,booktool_importhtml]
 MOV [maindirectory,mod_book],[maindirectory,booktool_importhtml]
 MOV [relinking,mod_book],[relinking,booktool_importhtml]
AMOS END