Add a mechanism to fetch layers (and all of their dependencies) from the layer index and update bblayers.conf as appropriate. This will require a new client-side utility as well as enhancement of the layer index itself to provide an API that can be queried by the utility.
Fixes merged to master: http://git.yoctoproject.org/cgit/cgit.cgi/poky/commit/?id=850642936887cff02b1f2cb2799c7dac01586bf0 http://git.yoctoproject.org/cgit/cgit.cgi/poky/commit/?id=48d0b3f160625ecad0611247fa000e2eb7d15536 http://git.yoctoproject.org/cgit/cgit.cgi/poky/commit/?id=dfa28485fc07ef9c194823358f53e6a3ace20a9d