Added tooltip to airdate on posters view

UI/Series/Index/Posters/ItemView.js

@@ -15,7 +15,8 @@ define([
 
 
         ui: {
-            'progressbar': '.progress .bar'
+            'progressbar': '.progress .bar',
+            'airDate': '.air-date'
         },
 
         events: {
@@ -27,6 +28,10 @@ define([
             this.qualityProfileCollection = options.qualityProfiles;
         },
 
+        onRender: function () {
+            this.ui.airDate.tooltip();
+        },
+
         editSeries: function () {
             var view = new NzbDrone.Series.Edit.EditSeriesView({ model: this.model});