Upgrade to Liquidsoap 1.4.1.

modules/liquidsoap/fallback.liq

@@ -229,19 +229,19 @@ def create_playlist() =
 end
 
 def create_station_fallback() =
-  result = get_process_lines('#{list.assoc("install_dir", ini)}/guru.py --get-next-file-for station --quiet')
+  result = get_process_lines('#{list.assoc(default="", "install_dir", ini)}/guru.py --get-next-file-for station --quiet')
   log("next song for STATION fallback is: #{result}")
   create_dynamic_playlist(result)
 end
 
 def create_show_fallback() =
-  result = get_process_lines('#{list.assoc("install_dir", ini)}/guru.py --get-next-file-for show --quiet')
+  result = get_process_lines('#{list.assoc(default="", "install_dir", ini)}/guru.py --get-next-file-for show --quiet')
   log("next song for SHOW fallback is: #{result}")
   create_dynamic_playlist(result)
 end
 
 def create_timeslot_fallback() =
-  result = get_process_lines('#{list.assoc("install_dir", ini)}/guru.py --get-next-file-for timeslot --quiet')
+  result = get_process_lines('#{list.assoc(default="", "install_dir", ini)}/guru.py --get-next-file-for timeslot --quiet')
   log("next song for TIMESLOT fallback is: #{result}")
   create_dynamic_playlist(result)
 end