Changes to upload release event log structure:
Changes to upload release event log structure:

* show new packages/jobs and existing packages/jobs as separate stages;
* aggregate existing jobs/packages processing into a single task;
* minor refactoring for upload release job code to clarify job flow.

Change-Id: If3e17c2292eabe35e0806f4833f7e5cf51ec5c5c

barthy1/bosh,barthy1/bosh,barthy1/bosh,barthy1/bosh