Support for alignment property for DataPoint labels. 

```
Visifire Version           : <Copy from: 'about:version'>
Silverilght / WPF          :
Managed Code / JavaSctipt  :
Browser and its Version    :

http://issueburner.com/#issue_detail?issue_id=9251
```

Original issue reported on code.google.com by `shoaibi...@gmail.com` on 1 Apr 2011 at 5:20
