Feature Request: ng update

[hansl]

For 1.0 this should only do the same thing as ng init but can only be used in an existing project. Update docs should be corrected for this, and we should have an e2e test.

[angular-automatic-lock-bot]

This issue has been automatically locked due to inactivity.
Please file a new issue if you are encountering a similar or related problem.

Read more about our automatic conversation locking policy.

_{This action has been performed automatically by a bot.}