Change to endpoints managed rollout

[simonz130]

We introduce a new feature where we can specify in YAML that service configuration for Endpoints is going to be managed. This means that the service will pull latest deployed service configuration automatically, rather than requiring customer to specify specific version of service configuration.

New flag:
--rollout_strategy=managed
Previously the only way to specify a version was using the following flag:
--version=SERVICE_CONFIG_ID

[lesv]

[ERROR] src/main/java/com/example/endpoints/AuthInfoServlet.java:[1] (header) RegexpHeader: Line does not match expected header line of '^\W+\*?\W*Copyright 20\d\d Google Inc.$'.
[ERROR] src/main/java/com/example/endpoints/EchoServlet.java:[1] (header) RegexpHeader: Line does not match expected header line of '^\W+\*?\W*Copyright 20\d\d Google Inc.$'.
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-checkstyle-plugin:2.17:check (default) on project endpoints: You have 2 Checkstyle violations. -> [Help 1]
[ERROR] 
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException


[ID: 4004795] Build finished after 109 secs, exit value: 1

[lesv]

LGTM - but it appears you need to fix a few things, so ping once that's done. Try doing a mvn clean verify before submitting. (It runs the style checker)

[wmwong]

The app.yaml files in getting-started/ and multiple-versions/ need to be updated as well (remove config id, add rollout_strategy managed).

[lesv]

I'd prefer to see GOOGLE_CLOUD_PROJECT, but I won't block on it.

[navinger]

LGTM