add SpamScoreDistribution class

js/SpamScoreDistribution.js

@@ -0,0 +1,53 @@
+Ext.define('PMG.SpamScoreDistribution', {
+    extend: 'Ext.grid.GridPanel',
+    xtype: 'pmgSpamScoreDistribution',
+
+    disableSelection: true,
+
+    title: gettext('Spam Scores'),
+
+    tbar: [ { xtype: 'pmgStatTimeSelector' } ],
+
+    store: {
+	xclass: 'PMG.data.StatStore',
+	staturl: "/api2/json/statistics/spamscores",
+	fields: [
+	    'count', 'ratio',
+	    {
+		type: 'string',
+		name: 'label',
+		convert: function(v, rec) {
+		    if (rec.data.level >= 10) {
+			return PMG.Utils.scoreText + ' >= 10';
+		    } else {
+			return PMG.Utils.scoreText + ' ' + rec.data.level;
+		    }
+		}
+	    }
+	],
+    },
+
+    columns: [
+	{
+	    header: PMG.Utils.scoreText,
+	    flex: 1,
+	    dataIndex: 'label'
+	},
+	{
+	    header: gettext("Count"),
+	    width: 150,
+	    dataIndex: 'count'
+	},
+	{
+	    header: gettext("Percentage"),
+	    width: 300,
+
+	    xtype: 'widgetcolumn',
+	    dataIndex: 'ratio',
+	    widget: {
+		xtype: 'progressbarwidget',
+		textTpl: ['{percent:number("0")}%' ]
+	    },
+	}
+    ]
+});

js/Utils.js

@@ -10,6 +10,7 @@ Ext.define('PMG.Utils', {
 
     senderText: gettext('Sender'),
     receiverText: gettext('Receiver'),
+    scoreText: gettext('Score'),
 
     oclass_text: {
 	who: gettext('Who Objects'),