Redeploying/releasing on apps:rename/fork

[stuartpb]

Right now apps:rename does a redeploy, and apps:fork does a rerelease and a redeploy. This should arguably be done by having the relevant parts of a redeploy/release handled by rename-app/fork-app hooks in the relevant release and deploy plugins (as rerelease-and-redeploy may be better accomplished by different means when renaming or forking).

[stuartpb]

As an example, apps:fork does not do a rebuild, because buildstep handles forking builds differently (it creates a cheap copy of the existing build image).

Indeed, the idea that a rename doesn't require a redeploy (or even a rebuild!) is a little presumptive (who says there isn't a plugin that adds the app's name to the environment)?