Merge remote-tracking branch 'upstream/master' into dp/chore/test-cor…

…e-handled_node

* upstream/master:
  Remove the old API (libp2p#565)
  Change some `nat_traversal`s to consider a prefix. (libp2p#550)
  Add some documentation to listeners stream (libp2p#547)
  Add shutdown functionality to `NodeStream`. (libp2p#560)
  Shut down yamux and fix mplex shutdown. (libp2p#559)

.circleci/config.yml

@@ -105,10 +105,6 @@ jobs:
       - checkout
       - restore_cache:
           key: integration-test-cache
-      - run:
-          command: cargo run --example ping-client -- /ip4/127.0.0.1/tcp/4001
-      - run:
-          command: cargo run --example echo-dialer -- /ip4/127.0.0.1/tcp/10333
       - save_cache:
           key: integration-test-cache
           paths:

Cargo.toml

@@ -47,28 +47,6 @@ tokio-current-thread = "0.1"
 tokio-io = "0.1"
 tokio-stdin = "0.1"
 
-[[example]]
-name = "echo-dialer"
-
-[[example]]
-name = "echo-server"
-
-[[example]]
-name = "floodsub"
-
-[[example]]
-name = "kademlia"
-
-[[example]]
-name = "ping-client"
-
-[[example]]
-name = "random_peerid"
-
-[[example]]
-name = "relay"
-
-
 [workspace]
 members = [
     "core",