0.22.0 changed allowed values for app names, making it more difficult for users to fix their app names - you need to either downgrade+rename or recreate the app. The `apps:rename` command can now rename these old applications to the new standard.
Also drop some app name verification from internal commands. Duplicate verification doesn't help much, and though it isn't excessively slow, it does prevent us from running commands against old apps that exist.
Refs #4267
A git push requires that the first four bytes should be the line length, so not suppressing the output results in a partially failed deploy.
https://stackoverflow.com/a/8175315/1515875
