Ticket 47382 - Add a warning message when a connection hits the max number of threads
    
    Bug Description:  Currently there is no way to tell when a connection is at max threads.
    
    Fix Description:  Update cn=monitor, "cn=snmp,cn=monitor", snmp, etc to report on
                      the number of current active threads that are in a max thread state.
                      Report the number of times any connection has hit max threads.  For
                      cn=monitor, extend the "connection" attribute to include three more
                      elements:
    
                             "1:2:3"
    
    			 1 = Connection max threads state:  1 is in max threads, 0 is not
    			 2 = The number of times this thread has hit max threads
    			 3 = The number of operations attempted that were blocked
    			     by max threads.
    
                             connection: 66:20130724195333Z:1:1:-:cn=directory manager:0:1:3
    
    https://fedorahosted.org/389/ticket/47382
    
    Reviewed by: richm(Thanks!)