Release criteria updates: desktop question

[Bruno Wolff III]

spin-kickstarts-0.15.6-1.fc15 has been built with the state used for RC3.
It does not include the LXDE commit from after RC3. If a new LXDE is
built before release then we should probably do another build before
release. Same if SOAS has and ks changes before it is built. Otherwise
I'll do another one a bit after the release to pick up the LXDE change.