Adds annotation attribute to CreateFunctionRequest

1. Add new annotation attributes which may be used
by the back-end for making scheduling or routing decisions.

2. Updated tests/README.md to give clearer instructions on creating and
tearing down the stack required to run the integration tests

3. Update ci.sh
 * Fail as soon as an error is encountered
 * Allow script to run locally in development environment, test if repos
are already cloned etc..
 * Deploy ./stack.yml used by existing integration tests

Signed-off-by: Edward Wilde <ewilde@gmail.com>

gateway/tests/integration/infohandler_test.go

@@ -34,7 +34,7 @@ func Test_InfoEndpoint_Returns_Gateway_Version_SHA_And_Message(t *testing.T) {
 	gatewayInfo := &types.GatewayInfo{}
 	err = json.Unmarshal([]byte(body), gatewayInfo)
 	if err != nil {
-		t.Log(err)
+		t.Errorf("Could not unmarshal gateway info, response body:%s, error:%s", body, err.Error())
 		t.Fail()
 	}