-updated liquidsoap scripts + library to be liquidsoap-beta2 compliant

python_apps/pypo/liquidsoap_scripts/library/tests/LS354-1.liq

@@ -0,0 +1,11 @@
+s = on_track(
+     fun(_)-> begin print("TEST PASSED") shutdown() end,
+     blank(duration=1.))
+
+r = ref false
+d = source.dynamic({ if !r then [s] else [] end })
+
+output.dummy(mksafe(d))
+
+add_timeout(2.,{r:=true;(-1.)})
+add_timeout(4.,{print("TEST FAILED");shutdown();(-1.)})