solexa2srf likes to produce output, so my trick of watching the

solexa2srf likes to produce output, so my trick of watching the
sockets to block until when the process ends didn't work.

This patch inserts a simple sleep(1) (second) into the code that
waits for the jobs to finish to prevent the queue manager from rapidly
spinning.

It should probably be fixed with a better way of monitoring for when
a process finishes

MERGED from trunk (the hard way)