While Bug 125078 corrected the shell script that copied the resources to the build target, there is a second copy step that happens when building an official release that was not updated. The WebKit.make also needed to be updated so that the resources would be copied to the DSTROOT used by the installer system.
<rdar://problem/15541067>
Created attachment 218313 [details] Patch
Committed r160017: <http://trac.webkit.org/changeset/160017>