[Alfresco] upload user avatar using resetful api

Build a uploadavatar.jsp page to test uploadavatar restful api.
The page content is shown as the below:

<form id="avatar" enctype="multipart/form-data"
action="http://ideas-cosa.dyndns.org/alfresco/service/slingshot/profile/uploadavatar?alf_ticket=TICKET_32178fa17bcf3b975e76129dccb78d646466e88d" method="post">
<input type="text" name="username" value="ken"/>
Select a file:
<input type="file" name="filedata" />
<input type="submit" name="button" value="upload" />
</form>

Alfresco

Reference: 
Adding Features
Adding password reset feature to Alfresco Share login
A simple My Weather dashlet using Alfresco share remote API
Writing a Hello World Dashlet for Alfresco Share

Create a new page to AlfShare
Spring Surf Developer Tools - Reference DocumentationSpring Surf with an Alfresco backend
Create a Custom Page in Share
Extending Share 1 - Creating a Share extension project
Extending Share 2 - Adding a New Content button to Document Library
Extending Share 3 - Adding new pages to share

Alfresco wiki
Web Studio
Surf Platform - Developers Guide
Surf Platform - Freemarker Template and JavaScript API