Delete space/document action added to MySpaces portlet.

Fixed subtle issue with ajax request being processed before outer txn was completed - caused refresh issues after Create/Upload/Delete actions.
More ui improvements to MySpaces portlet.

git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@5799 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

source/java/org/alfresco/web/bean/wcm/FilePickerBean.java

@@ -180,7 +180,6 @@ public class FilePickerBean
 
       final ResponseWriter out = facesContext.getResponseWriter();
       XMLUtil.print(result, out);
-      out.close();
    }
    
    @InvokeCommand.ResponseMimetype(value=MimetypeMap.MIMETYPE_HTML)
@@ -272,7 +271,6 @@ public class FilePickerBean
 
       final ResponseWriter out = facesContext.getResponseWriter();
       XMLUtil.print(result, out);
-      out.close();
    }
 
    private String getCurrentAVMPath()