made some of useless exceptions to calm down.

NzbDrone.Common/StringExtensions.cs

@@ -10,11 +10,6 @@ namespace NzbDrone.Common
             return string.Format(format, formattingArgs);
         }
 
-        public static string Inject(this string format, params string[] formattingArgs)
-        {
-            return string.Format(format, formattingArgs.Cast<object>());
-        }
-
         private static readonly Regex InvalidCharRegex = new Regex(@"[^a-z0-9\s-]", RegexOptions.Compiled | RegexOptions.IgnoreCase);
         private static readonly Regex InvalidSearchCharRegex = new Regex(@"[^a-z0-9\s-\.]", RegexOptions.Compiled | RegexOptions.IgnoreCase);
         private static readonly Regex CollapseSpace = new Regex(@"\s+", RegexOptions.Compiled | RegexOptions.IgnoreCase);

NzbDrone.Core/Indexers/IndexerFetchService.cs

@@ -4,8 +4,6 @@ using System.Net;
 using NLog;
 using NzbDrone.Common;
 using NzbDrone.Core.IndexerSearch.Definitions;
-using NzbDrone.Core.Model;
-using NzbDrone.Core.Parser;
 using NzbDrone.Core.Parser.Model;
 
 namespace NzbDrone.Core.Indexers
@@ -106,14 +104,14 @@ namespace NzbDrone.Core.Indexers
                 }
                 catch (WebException webException)
                 {
-                    if (webException.Message.Contains("503"))
+                    if (webException.Message.Contains("503") || webException.Message.Contains("timed out"))
                     {
                         _logger.Warn("{0} server is currently unavailable.{1} {2}", indexer.Name, url, webException.Message);
                     }
                     else
                     {
                         webException.Data.Add("FeedUrl", url);
-                        _logger.ErrorException("An error occurred while processing feed. " + url, webException);
+                        _logger.WarnException("An error occurred while processing feed. " + url, webException);
                     }
                 }
                 catch (Exception feedEx)

NzbDrone.Core/MediaCover/MediaCoverService.cs

@@ -1,6 +1,7 @@
 using System;
 using System.Collections.Generic;
 using System.IO;
+using System.Net;
 using NLog;
 using NzbDrone.Common;
 using NzbDrone.Common.EnvironmentInfo;
@@ -59,6 +60,10 @@ namespace NzbDrone.Core.MediaCover
                 _logger.Info("Downloading {0} for {1} {2}", cover.CoverType, series.Title, cover.Url);
                 _httpProvider.DownloadFile(cover.Url, fileName);
             }
+            catch (WebException e)
+            {
+                _logger.WarnException("Couldn't download media cover for " + series.TvdbId, e);
+            }
             catch (Exception e)
             {
                 _logger.ErrorException("Couldn't download media cover for " + series.TvdbId, e);