mozilla/zamboni — pull request #2223 by diox (2014-06-17 12:39:58+00:00)
Title: Rename ADDON_ICON_SIZES and only generate the ones we need (bug 885329)

https://bugzilla.mozilla.org/show_bug.cgi?id=885329

We should probably deprecate 32x32 and 48x48 as well, but that's for another bug.