added some tracking of associations in the database.  Primarily used for hourly rollup to determine reserved and over allocated time

and replace stub for acct_storage_p_get_config() in
src/plugins/accounting_storage/slurmdbd/accounting_storage_slurmdbd.c

    indicated the count of job restarts made.

  and report it via scontrol

  documented. Not utilized yet.

accounting database

log reservation creation/update info
disable logging of incoming reservation RPC contents

 (Position Independent Code) as required on some systems

	(with no reservation). It previously just permitted use of
	avail_node_bitmap, which didn't work properly immediatedly 
	after startup until nodes registerdd.

since it is needed in all of the same places (the job record now
has a pointer to the reservation structure, which has a pointer
to the partition record). Fix some scheduling logic too.