Use branch argument for wionbuild-prepare.ps1
Merge pull request #5 from stefanopanella/master

Use branch argument for winbuild-prepare.ps1
add GitUrl to xc-windows step to fix xc-vusb clone
Merge pull request #6 from stefanopanella/master

add GitUrl to xc-windows step to fix xc-vusb clone
[do_build.sh] be less verbose, and don't try to build source-info.json when not building the source iso
Merge pull request #7 from jean-edouard/master

[do_build.sh] be less verbose, and don't try to build source-info.json...
[do_build.sh] remove redundant OE_BB_THREADS definition
Merge pull request #8 from jean-edouard/master

LGTM
Make sure WIN_BUILD_OUTPUT is set when copying Windows build output

Without this check, the xctools step tries to rsync everything from the
root directory into the build tree.
Make sure REPO_PROD_CACERT and REPO_DEV_CACERT are set

Without these checks, resolve_path incorrectly resolves these empty
variables as references to the top-level directory in the build tree.
These pass the check in check_repo_signing_file because the directory
exists, then the xenclient-repo-certs recipe uses them in its SRC_URI
and tries to copy the whole build tree under its working directory.

Also move all the checks for these variables earlier in do_oe_setup,
before it tests whether xenclient/conf/local.conf exists. Otherwise, if
the setupoe step fails on one of these checks, rerunning it won't
generate a usable xenclient/conf/local.conf file.
Merge pull request #9 from rickleeming/master

Fix error checking for WIN_BUILD_OUTPUT and REPO_*_CACERT
add a README.md pointing to the wiki and the build instructions