Set curl type to 'features' when adding features to existing installation

salt/common/tools/sbin/so-features-enable

@@ -61,6 +61,7 @@ TRUSTED_CONTAINERS=( \
   "so-kibana" \
   "so-logstash" )
 
+CURLTYPE=features
 update_docker_containers
 
 sed -i 's/features: False/features: True/' $local_salt_dir/pillar/global.sls

salt/common/tools/sbin/so-image-common

@@ -17,6 +17,7 @@
 
 # Figure out if this is soup or refresh
 set_version() {
+  CURRENTVERSION=0.0.0
   if [ -f /etc/soversion ]; then
     CURRENTVERSION=$(cat /etc/soversion)
   fi