autobuilder.conf: local tweaks
CreateAutoConf: move tmpdir to /data
set hostname
master.cfg: set username/password
ross-x86.conf: add basic buildset
autobuilder.conf: enable optimised git clone
autobuilder: disable build history collection
ross-x86: fix layer, build more images, run at 5am
master.cfg: allow only one build at a time
buildset-config: add qemuarm build
buildset-config: build weston for x86
buildset-config: split arm to separate conf
ross-x86: don't build core-image-sato, just -dev
ross-nuc: add NUC target
yoctoAB: don't force an order
ross-x86: do a systemd build too
buildset-config: split systemd out of x86 to avoid work directory contamination
gitignore: ignore my build trees
buildset-config: fix layers in ross-nuc so it actually works
BuildImages: fix mystery whitespace in build logs

In some forms the "Building image1 image2" message is interleaved with
whitespace.  This is because the description field is meant to be a list but
this class sets it as a string.  Thanks to duck typing the list operations to
join it with " " work fine, and the message ends up spaced.  Fix this by setting
the description as a list.

Signed-off-by: Ross Burton <ross.burton@intel.com>