manifest: Tag NM
Create a smaller disk image for the hwtest tree

Since the hwtest tree doesn't include the desktop and is considerably
smaller than the other trees, and since one of the uses of the tree
is writing to a USB disk for installation, build only a 4GB image
for the hwtest tree.

https://bugzilla.gnome.org/show_bug.cgi?id=737185
libqa: don't refer to the current/ symlink

ostree no longer creates a symlink pointing to the current deployment;
use libostree to find out the current deployment instead.

https://bugzilla.gnome.org/show_bug.cgi?id=737184
manifest: Tag vala
manifest: Tag poppler
manifest: Untag systemd

Fixed by http://cgit.freedesktop.org/systemd/systemd/commit/?id=25773e7fc59b4ce53d67da4e18bfe4d13ab0b14b
manifest: Untag poppler
gnome-shell-valgrind: Try to fix script

At some point, g_dbus_proxy_new_finish became a constructor method, and
so the new_finish here started failing. Let's hope this fixes it.
Use the new gnomeostree-3.14-dizzy branch

This changes the base yocto reference to the gnomeostree-3.14-dizzy
branch which is (temporarily) alexlarsson:poky. I expect this to move
to cgwalters:poky later.

Additionally it does a few poky specific changes:
* Drop ca-certificates from manifest in favour of the one
  from poky. This fixes a directory name conflict when replacing
  the poky one with the ostree build one. And anywy, the poky one
  is probably better maintained.
* Change refereces from "tmp-eglibc" to "tmp-glibc" as this got
  directory got renamed in poky (due to switching to glibc).
Allow overriding ostree-build-yocto

If you create a $workdir/overrides/ostree-build-yocto it will be used
instead of the standard ostree-build-yocto.

This change allow us to use the python27 and git19 scls on rhel6
by having an override file that does something like:

 #!/bin/sh
scl enable python27 git19 "/PREFIX/lib/gnome-continuous/ostree-build-yocto $*"

Where PREFIX is where you installed gnome-continuous.