Emblem status in gnome-icon-theme

IMHO Another task to do in 2.20 timeframe is clarify the emblem
question.

### The Issues ###

There are several issues here (not all fixable in g-i-t). The current
status is:
      * g-i-t is shipping a lot of emblems: legacy emblems and INS[1]
        emblems
      * not all INS emblems are in g-i-t; not all sizes are available
      * if I'm right, by now only Nautilus and F-Spot are using emblems
      * Nautilus grabs emblems at wrong size
      * Nautilus has bugs getting emblem names
      * other...

Besides, with emerging xdg-user-dirs spec/utils/approac, could be
interesting provide emblems (or another mechanism[2]) to identify
special dirs.

### The Emblems ###

INS emblems:
      * emblem-default
      * emblem-documents
      * emblem-downloads
      * emblem-favorite
      * emblem-important
      * emblem-mail
      * emblem-photos
      * emblem-readonly
      * emblem-shared
      * emblem-symbolic-link
      * emblem-synchronized
      * emblem-system
      * emblem-unreadable

Legacy emblems:
      * emblem-art
      * emblem-camera
      * emblem-certified
      * emblem-cool
      * emblem-cvs-*
      * emblem-danger
      * emblem-desktop
      * emblem-distinguished
      * emblem-draft
      * emblem-handshake
      * emblem-marketing
      * emblem-money
      * emblem-multimedia
      * emblem-noread  --> INS:emblem-unreadable
      * emblem-note
      * emblem-nowrite --> INS:emblem-readonly
      * emblem-ohno
      * emblem-OK
      * emblem-people
      * emblem-personal
      * emblem-pictures
      * emblem-plan
      * emblem-presentation
      * emblem-sales
      * emblem-sound
      * emblem-trash

### The Ideas ###

So, any idea? Well, except burn all and start from zero...

[1] INS := Icon Naming Spec
[2] for example use named icons, not emblems: folder-movies,
folder-documents, folder-projects...