Changes related to allowing seperate 'fs' (file server) node.
Entailed new instructions for manual setup as well as integration into elabinelab framework. First, the manual path: setup.txt, setup-boss.txt, setup-ops.txt and new setup-fs.txt: Updated to reflect potential for separate fs node. The org here is a little dicey and could be confusing with ops+fs vs. ops and fs. Has not been field tested yet. */GNUmakefile.in: new fs-install target. configure, configure.in, defs-*: Somewhat unrelated, make min uid/gid to use be a defs setting. Also add config of fs-install.in script. boss-install.in, ops-install.in and new fs-install.in: Handle distinct fs node. If you have one, fs-install is run before ops-install. All scripts rely on the defs file settings of FSNODE and USERNODE to determine if the fs node is seperate. utils/checkquota.in: Just return "ok" if quotas are not used (i.e., if defs file FS_WITH_QUOTA string is null. install/ports/emulab-fs: Meta ...