fix inotify support

fix inotify support

2008-01-17  Timo Hoenig  <thoenig@suse.de>
	* fix inotify support
	* bus/dir-watch-inotify.c (_handle_inotify_watch): fix reading of the
	inotify events. Also, use ssize_t not size_t for 'ret'.
	* bus/dir-watch-inotify.c (bus_watch_directory): watch not only for
	IN_MODIFY but also for IN_CREATE and IN_DELETE
	* bus/dir-watch-inotify.c (bus_drop_all_directory_watches): drop the
	inotify watches more elegantly by closing inotify:_fd, set inotify_fd to
	-1 after dropping the watches