devel: Add cmake

It's used by libssh, and I'm not a total autotools fanatic or
anything.
kernel: Enable CONFIG_TMPFS_POSIX_ACL and _XATTR

Really should be on by default.
contents-devel: Add jpeg-dbg

So I can trace what's going on with gnome-shell massif.
contents-devel: Explicitly allow -dbg package RDEPENDS
kernel: Add CONFIG_FHANDLE

http://lists.freedesktop.org/archives/systemd-devel/2014-January/016163.html