add a file to an existing release under the specified group_id, package_id, and release_id
example :
add_file("codeforpeople.com", "traits", "0.8.0", "traits-0.8.0.gem") add_file("codeforpeople.com", "traits", "0.8.0", "traits-0.8.0.tgz") add_file(1024, 1242, "0.8.0", "traits-0.8.0.gem")
Posts news item to group_id (can be name) with subject and body
[Validate]