Add a similar mechanism for episodes downloads.

If it can't fetch it after a couple of retry (5 by default, can be changed on the command line) it will just ignore it and go to the next episode.

src/interface/ISeriesEpisode.d.ts

@@ -2,4 +2,5 @@ interface ISeriesEpisode {
   address: string;
   episode: string;
   volume: number;
+  retry: number;
 }

src/series.ts

@@ -56,9 +56,26 @@ export default function(config: IConfig, address: string, done: (err: Error) =>
         {
           if (errD)
           {
-            return done(errD);
+            if (page.episodes[i].retry <= 0)
+            {
+              console.error(err.stack || err);
+              console.error('Cannot fetch episode "s' + page.episodes[i].volume + 'e' + page.episodes[i].episode +
+                            '", please rerun later');
             }
-
+            else
+            {
+              if (config.verbose)
+              {
+                console.error(errD.stack || errD);
+              }
+              console.warn('Retrying to fetch episode "s' + page.episodes[i].volume + 'e' + page.episodes[i].episode +
+                           '" - Retry ' + page.episodes[i].retry + ' / ' + config.retry);
+              page.episodes[i].retry -= 1;
+            }
+            next();
+          }
+          else
+          {
             if ((ignored === false) || (ignored === undefined))
             {
               const newCache = JSON.stringify(cache, null, '  ');
@@ -78,6 +95,7 @@ export default function(config: IConfig, address: string, done: (err: Error) =>
               i += 1;
               next();
             }
+          }
         });
       })();
     });
@@ -152,6 +170,7 @@ function page(config: IConfig, address: string, done: (err: Error, result?: ISer
       address: address.substr(1),
       episode: '',
       volume: 0,
+      retry: config.retry,
     });
     done(null, {episodes: episodes.reverse(), series: ''});
   }
@@ -191,6 +210,7 @@ function page(config: IConfig, address: string, done: (err: Error, result?: ISer
           address: url,
           episode: episode[1],
           volume: volume ? parseInt(volume[0], 10) : 1,
+          retry: config.retry,
         });
       });
       if (episodeCount === 0)