Show more informative messages while streaming

When streaming, log messages now show the URL and IP of the originating
request, so that it's easier to determine what client is listening to
something on the server.

airsonic-main/src/main/java/org/airsonic/player/controller/StreamController.java

@@ -108,7 +108,7 @@ public class StreamController  {
                 playQueue.addFiles(false, playlistService.getFilesInPlaylist(playlistId));
                 player.setPlayQueue(playQueue);
                 Util.setContentLength(response, playQueue.length());
-                LOG.info("Incoming Podcast request for playlist " + playlistId);
+                LOG.info("{}: Incoming Podcast request for playlist {}", request.getRemoteAddr(), playlistId);
             }
 
             response.setHeader("Access-Control-Allow-Origin", "*");
@@ -165,7 +165,7 @@ public class StreamController  {
 
                 range = getRange(request, file);
                 if (settingsService.isEnableSeek() && range != null && !file.isVideo()) {
-                    LOG.info("Got HTTP range: " + range);
+                    LOG.info("{}: Got HTTP range: {}", request.getRemoteAddr(), range);
                     response.setStatus(HttpServletResponse.SC_PARTIAL_CONTENT);
                     Util.setContentLength(response, range.isClosed() ? range.size() : fileLength - range.getFirstBytePos());
                     long lastBytePos = range.getLastBytePos() != null ? range.getLastBytePos() : fileLength - 1;

airsonic-main/src/main/java/org/airsonic/player/io/PlayQueueInputStream.java

@@ -117,7 +117,7 @@ public class PlayQueueInputStream extends InputStream {
             close();
         } else if (!file.equals(currentFile)) {
             close();
-            LOG.info(player.getUsername() + " listening to \"" + FileUtil.getShortPath(file.getFile()) + "\"");
+            LOG.info("{}: {} listening to {}", player.getIpAddress(), player.getUsername(), FileUtil.getShortPath(file.getFile()));
             mediaFileService.incrementPlayCount(file);
 
             // Don't scrobble REST players (except Sonos)