Update version to 2.2.0-rc.3

salt/common/tools/sbin/so-common

@@ -30,3 +30,8 @@ header() {
         echo
         printf '%s\n' "$banner" "$*" "$banner"
 }
+
+lookup_pillar() {
+        key=$1
+        cat /opt/so/saltstack/local/pillar/global.sls | grep $key | awk '{print $2}'
+}