Investigate apps that can be deployed with a name too long so that they are not routable

[markpollack]

We have a test for the length of the route in

https://github.com/spring-cloud/spring-cloud-deployer-cloudfoundry/blob/07377f44b181639b3b4957abd206e3b4a9b2e6f5/src/main/java/org/springframework/cloud/deployer/spi/cloudfoundry/CloudFoundryAppNameGenerator.java#L80

but in some testing, was able to create an app that had too long a name so that it was not routable.

[dturanski]

Possible Duplicate of #226