Adjust to systemd configure api change

The --with-sysvrcd-path option is now spelled --with-sysvrcnd-path.
Makes much more sense...
install: Explicitly disable g-i cairo support

Since this moduleset is targeted for RHEL6.
modules: Ensure libsoup is built before ostree
Update libgsystem
qa_make_disk/qa_pull_deploy: Scripts to generate disk images as non-root

Using guestfish.
qa: Extract out guestfish helper code, various fixes to deploy/grub config
manifest: Tag libdrm; manpages changes

Patch sent upstream.
pango needs bleeding-edge fontconfig now
Update fontconfig patch
fix fontconfig patch
manifest: Add another fontconfig patch
build: Define correct argument name for snapshot

It's --snapshot, not --src-snapshot.
manifest: Drop upstreamed fontconfig patches
qa: Extract guestmount into guestfish helper class

This is significantly cleaner, since we want other bits that also do
the mounting.
snapshot: If given explicit path, use it

Rather than trying to find it in the jsondb.  Fixes the previous
commit to ostbuild autobuilder which passes --snapshot to build.
ostbuild: introduce an object oriented abstraction for VCS utilities

This will allow to support building from sources different than git.

https://bugzilla.gnome.org/show_bug.cgi?id=691312
Split GIT specific code out of Vcs.Module

This will make it possible to have modules that don't use GIT, and at
the same time it restores 'local:' keytype support.

https://bugzilla.gnome.org/show_bug.cgi?id=691312
Add support for building from tarballs

Add a new module class that uses wget, tar, cp and patch and supports building
from tarballs, without requiring git mirrors (that often become outdated).

https://bugzilla.gnome.org/show_bug.cgi?id=691312
Automatically run autoreconf when the build system uses autoconf

If no autogen.sh script is present, but the build system uses autoconf,
we can run autoreconf ourselves.

https://bugzilla.gnome.org/show_bug.cgi?id=691312
Switch to building from tarballs for certain modules

For modules of which we don't want to do continuous integration, switch
to building from tarballs, from the latest stable version, or the minimum
required by GNOME modules.

https://bugzilla.gnome.org/show_bug.cgi?id=691312