Look into disabeling the upload feature

[coesensbert]

Since we will be running multiple hub we run into several issues, one of which is the Master-slave limitation. Each extra hub will have to sync latests flists for our master hub.grid.tf. Flists uploaded at other hubs then the master, will not get synced to others and will break incremental.py sync from the master.

Another option could be to for a private hub with only few flist copied from the master, then we can keep upload feature enabled and use the script (not yet done) which sync only specific flist