No tests for random appname creation

[Cryptophobia]

From @mboersma on May 12, 2016 19:44

All the deis apps:create tests use the -a | --appname flag, but there should be at least one spec that allows Workflow controller to generate a random app name.

Copied from original issue: deis/workflow-e2e#194

[Cryptophobia]

From @Joshua-Anderson on September 8, 2016 22:29

This is tested in the controller and soon in the CLI. Does this need to be tested in e2e?