ext5migrate: adapt Backup items to new KVCombobox parent class

This allows the Backup to work with ExtJS5

www/manager5/form/BackupModeSelector.js

 Ext.define('PVE.form.BackupModeSelector', {
     extend: 'PVE.form.KVComboBox',
     alias: ['widget.pveBackupModeSelector'],
-  
-    initComponent: function() {
-	var me = this;
-
-	me.data = [
-	    ['snapshot', gettext('Snapshot')],
-	    ['suspend', gettext('Suspend')],
-	    ['stop', gettext('Stop')]
-	];
-
-	me.callParent();
-    }
+    comboItems: [
+                ['snapshot', gettext('Snapshot')],
+                ['suspend', gettext('Suspend')],
+                ['stop', gettext('Stop')]
+    ]
 });

www/manager5/form/CompressionSelector.js

 Ext.define('PVE.form.CompressionSelector', {
     extend: 'PVE.form.KVComboBox',
     alias: ['widget.pveCompressionSelector'],
-  
-    initComponent: function() {
-	var me = this;
-
-        me.data = [ 
-	    ['', PVE.Utils.noneText],
-	    ['lzo', 'LZO (' + gettext('fast') + ')'],
-	    ['gzip', 'GZIP (' + gettext('good') + ')']
-	];
-
-	me.callParent();
-    }
+    comboItems: [
+                ['', PVE.Utils.noneText],
+                ['lzo', 'LZO (' + gettext('fast') + ')'],
+                ['gzip', 'GZIP (' + gettext('good') + ')']
+    ]
 });

www/manager5/form/DayOfWeekSelector.js

 Ext.define('PVE.form.DayOfWeekSelector', {
     extend: 'PVE.form.KVComboBox',
     alias: ['widget.pveDayOfWeekSelector'],
-  
-    initComponent: function() {
-	var me = this;
-
-	me.data = [
+    comboItems: [
 	    ['sun', Ext.util.Format.htmlDecode(Ext.Date.dayNames[0])],
 	    ['mon', Ext.util.Format.htmlDecode(Ext.Date.dayNames[1])],
 	    ['tue', Ext.util.Format.htmlDecode(Ext.Date.dayNames[2])],
@@ -13,8 +9,5 @@ Ext.define('PVE.form.DayOfWeekSelector', {
 	    ['thu', Ext.util.Format.htmlDecode(Ext.Date.dayNames[4])],
 	    ['fri', Ext.util.Format.htmlDecode(Ext.Date.dayNames[5])],
 	    ['sat', Ext.util.Format.htmlDecode(Ext.Date.dayNames[6])]
-	];
-
-	me.callParent();
-    }
+	]
 });

www/manager5/form/EmailNotificationSelector.js

 Ext.define('PVE.form.EmailNotificationSelector', {
     extend: 'PVE.form.KVComboBox',
     alias: ['widget.pveEmailNotificationSelector'],
-
-    initComponent: function() {
-        var me = this;
-
-        me.data = [
-            ['always', gettext('Always')],
-            ['failure', gettext('On failure only')]
-        ];
-
-        me.callParent();
-    }
+    comboItems: [
+                ['always', gettext('Always')],
+                ['failure', gettext('On failure only')]
+    ]
 });