Deal with version updates in deploy script
Check for integrity errors in build_completed

build_completed may be called concurrently from polling and watcher. Check for
integrity error and rollback if insertions happened at the same time.
Re-add simple plugin API
Remove Repo, use only Koji repo_id
Don't store package resolution state, compute it
Send fedmsg notification on package state change
Tests for fedmsg publisher
Add __init__.py for plugins
Fix package state ordering in frontend
Take ignored packages into account in scheduler
Start reworking package-detail table