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

python_apps/pypo/liquidsoap_scripts/library/tests/LS503.liq

@@ -0,0 +1,13 @@
+# In LS-503 we realized that a source may throw an
+# exception during output_get_ready call in the initial
+# main phase. This code reproduces the issue by throwing
+# an exception in output.icecast.
+
+# Reopen stderr to /dev/null to
+# disable printing expected exception
+reopen.stderr("/dev/null")
+
+p = input.http("http://localhost:8000/nonexistent")
+o = output.icecast(%wav,fallible=true,host="nonexistent",
+                    mount="test",p)
+