control nuxeo launching regarding runtime deployment statuses

We already have a strict mode in the runtime which exit the JVM in case of error. That mode was never be used in test or in production. In the tomcat deployment because we can't exit the tomcat and in test there is always some errors which we don't want to consider.

In the target version of the feature, we should have a deployment and a runtime application. The admin application then could react to the runtime errors and interact with the administrator.

In the current version, the nuxeoctl launcher should react to the runtime status and ask the tomcat for shutdown depending of the launcher option.

1. cleanup strict mode in runtime
2. extend the status servlet for reporting the runtime launching status (json based)
3. extend the launcher for reacting to the runtime launching status