CC-3131: Latency of stream authentication warning in Stream Settings page

- it compares boot time of liquidsoap and the time user clicks on "Save"
on stream setting page. The status only gets updated if the
"boot_time" > "user update time"
- as soon as a user click on save, status is set to "wating"
- since there is no timing issue, quering interval is reduced to 1 sec

python_apps/pypo/liquidsoap_scripts/ls_script.liq

@@ -6,6 +6,8 @@ set("log.stdout", true)
 set("server.telnet", true)
 set("server.telnet.port", 1234)
 
+time = gettimeofday()
+
 queue = audio_to_stereo(request.queue(id="queue", length=0.5))
 queue = cue_cut(queue)