Comment 5 for bug 747677

Hereby requesting a Feature Freeze Exception.

The rationale for the change is that:
- the extra emblem properties (the API part that has to be removed) where not backed by a design case; on the contrary, Design confirms, after the experimentation phase, that the feature is not welcome: it would create more harm than good
- we're removing an API that only the U1 client was really using, and they're working on a fallback solution with Design
- it's the last time we can really pull this out; if released, we would have to support it for at least 18 months, and it's always difficult and long to deprecate an API

The code changes are referenced in the attached merge proposals. This FFE covers both:
- the removal of arbitrary emblems support
- the addition of the urgency API
- the related U1 changes