[upgrade] add indexes in upgrade script

Author: ar2rsawseen

bin/upgrade/18.04.1/upgrade.sh

@@ -14,5 +14,8 @@ if [ ! -f $DIR/../plugins/plugins.ee.json ]; then
 fi
 countly plugin enable alerts
 
+#add indexes
+nodejs $DIR/scripts/add_indexes.js
+
 #install dependencies, process files and restart countly
 countly upgrade