basic width styling for common cells

UI/Cells/RelativeDateCell.js

@@ -1,6 +1,8 @@
 "use strict";
-define(['app'], function () {
-    NzbDrone.Cells.RelativeDateCell = Backgrid.Cell.extend({
+define(['app','Cells/NzbDroneCell'], function () {
+    NzbDrone.Cells.RelativeDateCell = NzbDrone.Cells.NzbDroneCell.extend({
+
+        className : 'relative-date-cell',
 
         render: function () {
 

UI/Cells/cells.less

@@ -5,3 +5,15 @@
 .episode-title-cell {
   .btn-link;
 }
+
+.air-date-cell {
+  width: 100px;
+}
+
+.relative-date-cell {
+  width: 150px;
+}
+
+.quality-cell{
+  width: 130px;
+}

UI/Series/EpisodeModel.js

@@ -74,9 +74,11 @@ define(['app', 'Series/SeriesModel'], function () {
                     json[name] = _.bind(this.mutators[name], this)();
                 }
             }, this));
-            
-            json.series = this.get('series').toJSON();
-
+           
+            if (this.has('series'))
+            {
+                json.series = this.get('series').toJSON();
+            }
             return json;
         },