Correct comments in #else and #endif
Make sure HSM_INC are used when compiling hpss stuff.
If prefetch failes remove preallocated file

Also even if set_osd_file_ready cannot verify IP-address of the calling
OSD in the OSDDB check the md5-checksum against waht is in the osd metadata.
Limit the number of fetch request per user in the fetch queue

Per default allow 200 fetch requests per user. Can be changed by
"osd setvariable <osd> maxFetchRequestsPerUser <value>". Also changes
in afs_pioctl.c and venusosd.c where necessary to let the user know
what happened.
Make sure budb_client.h can be installed

needs to be copied from the source tree.