Allow user to download and install arbitrary images
diff --git a/stackrc b/stackrc
index 15d73ce..9a94721 100644
--- a/stackrc
+++ b/stackrc
@@ -27,6 +27,9 @@
 OPENSTACKX_REPO=https://github.com/cloudbuilders/openstackx.git
 OPENSTACKX_BRANCH=diablo
 
+# Specify a uec image to download and install into glance.
+IMAGE_URL=http://smoser.brickies.net/ubuntu/ttylinux-uec/ttylinux-uec-amd64-11.2_2.6.35-15_1.tar.gz
+
 # allow local overrides of env variables
 if [ -f ./localrc ]; then
     source ./localrc