Change screenshot error handling to not exit when one of the URLs cau…

…sed error, simply log it and proceed with the rest.

lib/baker.js

@@ -51,7 +51,8 @@ Baker.prototype.screenshot = function (tags, cb) {
       } else {
         console.log('%s - Created %s', 'success'.green, file);
       }
-      cb(err);
+      // don't pass error here, when an error occurs then simply log it but proceed with the rest of the bookmarks
+      cb();
     });
   }