task#3869 - initial stuff for API

deny timestamps in the future too.

shellscripts/api-client.sh

@@ -56,7 +56,7 @@ function makeRequest(){
     echo $apiMethod ${apiHost}${apiRequest}
     echo $line
 
-    if [ ! -z $secret ]; then
+    if [ ! -z "$secret" ]; then
 
         # --- date in http format
         LANG=en_EN