Move sleep on reset from IPAM Allocator to weave script

ipam/allocator.go

@@ -419,7 +419,6 @@ func (alloc *Allocator) Shutdown() {
 			alloc.persistRing()
 			alloc.space.Clear()
 			alloc.gossip.GossipBroadcast(alloc.Gossip())
-			time.Sleep(100 * time.Millisecond)
 		}
 		doneChan <- struct{}{}
 	}

weave

@@ -2308,6 +2308,7 @@ EOF
         plugin_disabled || util_op remove-plugin-network weave || warn_plugin_active
         warn_if_stopping_proxy_in_env
         call_weave DELETE /peer >/dev/null 2>&1 || true
+        fractional_sleep 0.5 # Allow some time for broadcast updates to go out
         for NAME in $PLUGIN_CONTAINER_NAME $CONTAINER_NAME $PROXY_CONTAINER_NAME ; do
             docker stop  $NAME >/dev/null 2>&1 || true
             docker rm -f $NAME >/dev/null 2>&1 || true