* don't push pcmclient env variables to clients, since they don't have useful
information in them
* add check to comm_spawn code to make sure we can spawn
This commit was SVN r2993.
* add env pcmclient, which builds client data out of environment variables
* improved rsh infrastructure a little bit - almost able to get to calling
fork()
* Removed instance information for llm - it should be burried in the pcm,
not exposed
*** YOU MUST RUN AUTOGEN / CONFIGURE / etc AFTER UPDATING ***
This commit was SVN r2191.