#36 Reworked string comparision for fuser's file name space

[Dr. Werner Fink]

this one is a patch that reworks the string comparision for file name space in fuser. It makes the usage of this configurable with --enable-mountinfo-list at build time as well as at runtime with --inode. Also it uses shared memory maps to reduce the load on write/read the stat buffers.

[Dr. Werner Fink]

Hmm ... autodetection isn't that smart but I can not rename my patch `x' 8)

[Dr. Werner Fink]

Beside this the inode/string comparision could be reversed that is the default would be inode based but an option may switch over to string comparision for network based files.

[Craig Small]

Added to repository at commit [fc4920]