Seperate AddArtist, Artist. Refactor NavSearch, Artist Editor. Other

Misc UI Fixes

src/UI/Artist/TrackCollection.js

@@ -0,0 +1,62 @@
+var Backbone = require('backbone');
+var PageableCollection = require('backbone.pageable');
+var TrackModel = require('./TrackModel');
+require('./TrackCollection');
+
+module.exports = PageableCollection.extend({
+    url   : window.NzbDrone.ApiRoot + '/episode',
+    model : TrackModel,
+
+    state : {
+        sortKey  : 'episodeNumber',
+        order    : 1,
+        pageSize : 100000
+    },
+
+    mode : 'client',
+
+    originalFetch : Backbone.Collection.prototype.fetch,
+
+    initialize : function(options) {
+        this.seriesId = options.seriesId;
+    },
+
+    bySeason : function(season) {
+        var filtered = this.filter(function(episode) {
+            return episode.get('seasonNumber') === season;
+        });
+
+        var EpisodeCollection = require('./TrackCollection');
+
+        return new EpisodeCollection(filtered);
+    },
+
+    comparator : function(model1, model2) {
+        var episode1 = model1.get('episodeNumber');
+        var episode2 = model2.get('episodeNumber');
+
+        if (episode1 < episode2) {
+            return 1;
+        }
+
+        if (episode1 > episode2) {
+            return -1;
+        }
+
+        return 0;
+    },
+
+    fetch : function(options) {
+        if (!this.seriesId) {
+            throw 'seriesId is required';
+        }
+
+        if (!options) {
+            options = {};
+        }
+
+        options.data = { seriesId : this.seriesId };
+
+        return this.originalFetch.call(this, options);
+    }
+});