Some code cleanup

- typos, jslint stuff, etc.
Patch to Ext.data.Reader.Xml so that reading in a nested xml document will work with an Ext.tree.Panel

- this is for the work on Ext.nd.UIOutline
Initial work for Ext.nd.UIOutline

- Ext.nd.data.OutlineXmlReader with a custom readRecords method that converts that flat xml file sent by Domino into a nested Xml file needed for a TreePanel
- Ext.nd.data.OutlineModel with custom convert methods to handle how domino defines a leaf and if an entry is already expanded
- Ext.nd.data.OutlineStore pulls everything together to make the server call
- Ext.nd.tree.Panel extends Ext.tree.Panel
Sample test page for testing new Ext.nd components