set EnableAnonymousUsageReporting to false to avoid log spam (#348)

It's the default value for the setting, so it'll only affect new servers. If enabled, it'll send usage statistics to an endpoint that doesn't exist, which just clutters the console/logs.

MediaBrowser.Model/Configuration/ServerConfiguration.cs

@@ -221,7 +221,7 @@ namespace MediaBrowser.Model.Configuration
             HttpsPortNumber = DefaultHttpsPort;
             EnableHttps = true;
             EnableDashboardResponseCaching = true;
-            EnableAnonymousUsageReporting = true;
+            EnableAnonymousUsageReporting = false;
             EnableCaseSensitiveItemIds = true;
 
             EnableAutomaticRestart = true;