Revert "Move default Keystone API version to v3"

It seems like the fallout from this was not well sorted.
A lot of things aren't working, and there is still vestigial
v2 bits left behind.

This should have come with a much greater warning and some
spot checking of additional services working with this.

This reverts commit b162a1d58cdecfb32847b59bd341e06c26efb1ed.

Change-Id: Ia792b23119c00089542ba08879dca1c29dc80945
diff --git a/tools/create_userrc.sh b/tools/create_userrc.sh
index 00a208c..74d5428 100755
--- a/tools/create_userrc.sh
+++ b/tools/create_userrc.sh
@@ -133,7 +133,7 @@
 fi
 
 if [ -z "$OS_AUTH_URL" ]; then
-    export OS_AUTH_URL=http://localhost:5000/v3/
+    export OS_AUTH_URL=http://localhost:5000/v2.0/
 fi
 
 if [ -z "$OS_USER_DOMAIN_ID" -a -z "$OS_USER_DOMAIN_NAME" ]; then
@@ -236,7 +236,7 @@
 export EC2_USER_ID=42 #not checked by nova (can be a 12-digit id)
 export EUCALYPTUS_CERT="$ACCOUNT_DIR/cacert.pem"
 export NOVA_CERT="$ACCOUNT_DIR/cacert.pem"
-export OS_AUTH_TYPE=v3password
+export OS_AUTH_TYPE=v2password
 EOF
     if [ -n "$ADDPASS" ]; then
         echo "export OS_PASSWORD=\"$user_passwd\"" >>"$rcfile"