Remove "notif/triage" label as soon as another label has been added

[rhuss]

Suggestion: As soon as another label after the notif/triage label has been added, the notif/triage label could be removed automatically, with the assumption that labels are only addded during a triage process.

@paoloantinori @zregvart wdyt ?

[paoloantinori]

Well. I think labels can be added even at a later stage. Either labels that do not exist yet today, or labels that we identify only later on.
Also, so far, it's just a matter of remembering to remove a single label when you classify the item.

Having this automated might be a nice scripting exercise, probably not a high priority one.

[KurtStam]

I think it is important that during triage we set the milestone, so we know what to fix for 7.0