* Prototypes for fuse_new(3), fuse_mount(3), and fuse_unmount(3) now
matches to the original fuse interface.
* Add fuse_daemonize(3): needs to have a different prototype,
otherwise we can't use puffs_daemon(3).
* Remove fuse_setup(3) and fuse_teardown(3). These obsolete functions
has already been removed from the original interface.
* fuse_main(3) now supports the following command-line options
compatible with the original fuse:
-h, --help print help message
-V, --version print library version (currently does nothing)
-d, -o debug enable debug output (PUFFS_FLAG_OPDUMP), implies -f
-f foreground mode
-s single threaded mode (always enabled for now)
-o fsname=NAME explicitly set the name of the file system
* fuse_main(3) now daemonizes the process by default. This is for the
compatibility with the original fuse.