Controlled production synch

Currently:
Most of repository builds (at least in Qt) is building repositories both in staging and production area. This is causing problems especially with automated builds & slow china synch

New way:

• Repository builds updates only staging area
• Publishing / production synch jobs should do

1. Copy packages (based on release description file) from staging to production area
2. synch packages from production area to official production servers (master, S3, China CDN)

That way we will have

• Exact copy of production servers in production area
• staging area where to test new changes, updates etc before publishing the packages
• possibility to keep china CDN, S3, master etc better in synch
• possibility to set manual decision point for publishing packages