Integration tests for your jobs

A common use for Local Mode is to run a test. For example, you might create a profile called :test, and execute it like this:

lemur local :test ...

Then, in the :test profile, you can specify cluster and step option values / args that are specific to your test. And a post hook (maybe using lemur.common/diff-test-data) to validate the results. [TODO I should create a sample of this.]

Note that lemur attributes no special significance to the :test profile. It is just a conventional usage.