Updating autobahn testsuite execution and instructions.

test/autobahn/README.md

@@ -0,0 +1,13 @@
+# Autobahn Test Suite
+
+I now run this using Docker Desktop for Mac. Unfortunately, the maintainer of the official Autobahn TestSuite Docker image has not published a new version recently, so we have to build the Docker image ourselves.
+
+Clone the autobahn repo, cd to the `docker` directory, and run:
+```bash
+docker build \
+  --build-arg AUTOBAHN_TESTSUITE_VCS_REF=c3655a9 \
+  --build-arg BUILD_DATE=2020-08-28 \
+  --build-arg AUTOBAHN_TESTSUITE_VERSION=0.8.1 \
+  -t crossbario/autobahn-testsuite:latest \
+  .
+```

test/autobahn/run-wstest.sh

@@ -8,4 +8,4 @@ docker run -it --rm \
     -p 9001:9001 \
     --name fuzzingclient \
     crossbario/autobahn-testsuite \
-    /usr/local/bin/wstest -m fuzzingclient --spec /config/fuzzingclient.json
+    wstest -m fuzzingclient --spec /config/fuzzingclient.json