Added one second wait between reattach attempts
cleaned up and fixed little bugs

Did some small test stuff for slurmctld.  I think that I duplacted some of the work all ready in api/manual, but I'll resolve that later.

function of scontrol

bitfmt2int should be there anyway. nodelist.[ch] deleted.

hostlist.[ch] functions.

Set initial value of n in hostset_insert_range to eliminate warning on compile

read and write size members now move in tandem

added more assert checks

Changed version numbers to dates in version field of API man pages.

Added EINTR functionality
Added free_circular_buffer routine