Disconnect 'path' from 'name' fileset attribute

Disconnect 'path' from 'name' attribute for files and filesets.
Previously, the 'path' denoted the dir where the fileset or file
resided, and 'name' would be appended to it as the file's name, or the
fileset's root directory. This patch amends 'path' attribute resolution
so that 'name' is not part of it, and is only used as an identifier.
This is consistent with the way 'name' is used is general.
Fix fileset path in fileserver-new.f

Expanded path attribute to include root dir, as required by the previous
patch.