Generate elementary link (#167)

quickget

@@ -617,10 +617,14 @@ EOF
 function get_elementary() {
     local ISO=""
     local URL=""
+    local B66tim=""
+
 
     validate_release "releases_elementary"
+    B66tim=$(date +%s | base64 )
     ISO="elementaryos-${RELEASE}-stable.20211005.iso"
-    URL="https://ams3.dl.elementary.io/download/MTYzNTM1NDc4OQ==/${ISO}"
+    # TODO:  derive region from geoIP 
+    URL="https://ams3.dl.elementary.io/download/${B66tim}=/${ISO}"
     web_get "${URL}" "${VM_PATH}"
     make_vm_config "${ISO}"
 }