Issue opinkerfi#18 - Replica Busy is not critical

Changed the plugin.status to allow for status 0 or status 1.

check_ipa/check_ipa_replication

@@ -46,10 +46,13 @@ except Exception, e:
 # Loop through replication agreements
 for rhost in replication:
     plugin.add_summary("Replica %s Status: %s" % (rhost[1]['nsDS5ReplicaHost'][0], rhost[1]['nsds5replicaLastUpdateStatus'][0]))
-    if rhost[1]['nsds5replicaLastUpdateStatus'][0][:2] != "0 ":
-        plugin.status(critical)
-    else:
+    if rhost[1]['nsds5replicaLastUpdateStatus'][0][:2] == "0 ":
+        plugin.status(ok)
+    elif rhost[1]['nsds5replicaLastUpdateStatus'][0][:2] == "1 ":
+        # Busy Replica is not an error, its "unknown" (but its "ok" for now)
         plugin.status(ok)
+    else:
+        plugin.status(critical)
 
 if not len(replication):
     plugin.add_summary("Warning: No replicas found")