Make vagrant.sh respect OPENEDX_RELEASE env variable

util/install/vagrant.sh

@@ -29,11 +29,24 @@ sudo apt-get install -y build-essential software-properties-common python-softwa
 sudo pip install --upgrade pip
 sudo pip install --upgrade virtualenv
 
+## Did we specify an openedx release?
+if [ -n "$OPENEDX_RELEASE" ]; then
+  EXTRA_VARS="-e edx_platform_version=$OPENEDX_RELEASE \
+    -e ora2_version=$OPENEDX_RELEASE \
+    -e certs_version=$OPENEDX_RELEASE \
+    -e forum_version=$OPENEDX_RELEASE \
+    -e xqueue_version=$OPENEDX_RELEASE \
+  "
+  CONFIG_VER=$OPENEDX_RELEASE
+else
+  CONFIG_VER="release"
+fi
+
 ##
 ## Clone the configuration repository and run Ansible
 ##
 cd /var/tmp
-git clone -b release https://github.com/edx/configuration
+git clone -b $CONFIG_VER https://github.com/edx/configuration
 
 ##
 ## Install the ansible requirements
@@ -44,4 +57,4 @@ sudo pip install -r requirements.txt
 ##
 ## Run the edx_sandbox.yml playbook in the configuration/playbooks directory
 ##
-cd /var/tmp/configuration/playbooks && sudo ansible-playbook -c local ./edx_sandbox.yml -i "localhost,"
+cd /var/tmp/configuration/playbooks && sudo ansible-playbook -c local ./edx_sandbox.yml -i "localhost," $EXTRA_VARS