initial upload of new Javascript Frontend based on ExtJS (by Johannes)

- contains ExtJS Library 4.1.1a, together with css and images
  - is related to the module 93_DbLog.pm, which holds some functions used by the frontend

git-svn-id: https://fhem.svn.sourceforge.net/svnroot/fhem/trunk/fhem@2767 2b470e98-0d58-463d-a4d8-8e2adae1ed80

www/frontend/app/model/ChartModel.js

@@ -0,0 +1,16 @@
+/**
+ * Model for Charts
+ */
+Ext.define('FHEM.model.ChartModel', {
+    extend: 'Ext.data.Model',
+    fields: [
+        {
+            name: 'TIMESTAMP',
+            type: 'date',
+            dateFormat: "Y-m-d H:i:s"
+        },{
+            name: 'VALUE',
+            type: 'float'
+        }
+    ]
+});