configure: some usable output

system_setup/configure.sh

@@ -45,12 +45,16 @@ do_configure() {
     echo ""
     echo "=== System Configuration ==="
     echo "Press Enter to keep the current value, or type a new one."
+    echo "Configuration will be reread for each value to make sure the settings are applied."
+    echo
 
     # If other Repo infos are given, set them first
     if [[ ! -z $REPO_URL ]]; then
+        echo "REPO_URL is set to $REPO_URL . Will use it for configure.conf."
         set_conf_var "REPO_URL" "$REPO_URL"
     fi
     if [[ ! -z $REPO_BRANCH ]]; then
+        echo "REPO_BRANCH is set to $REPO_BRANCH . Will use it for configure.conf."
         set_conf_var "REPO_BRANCH" "$REPO_BRANCH"
     fi