issue with v3 of the Ruby client API

Hey,

The v3 Ruby client library is incapable of sending files to the Kaltura service. This is because of the implementation of the Net::Http library, it doesn't handle multipart POST requests.

This version of the kaltura_client_base.rb should fix it:
http://github.com/Velir/kaltura-ruby/blob/520320cc73dc86ad1815456191ab0a...

Thanks,
Patrick Robertson