added name server
mallot has locks around it; registered servers now get inserted into name server lsit
added request types to name server
added lookup of descriptors
reply interface now takes descriptors
name server request seems to work -- possible memory race?
added general library for building servers.  bad servers
separating out server code
added server prog separation
fixed find_pages error case
name server now uses generic setup
server init now optionally starts server without alerting creator
direct copy of descriptors to children (previously found lowest desc)
removed ref count temporarily
fixed some more bugs
made fs errors distinct
added distinct errs to name server