IO Utility

==========

The IO family of modules provide a simple API for requesting resources over HTTP

and HTTPS. These modules are:

* `io-base`: This is the base IO module that facilitates HTTP requests using

the `XMLHttpRequest` transport.

* `io-xdr`: This module adds the ability to make cross-domain support through

a Flash transport, and an `XDomainRequest` transport for Internet Explorer.

* `io-form`: This module adds the ability to serialize HTML form data into a

key-value string.

* `io-upload-iframe`: This module adds the ability to upload files, as part of

a request payload, in an HTML form.

* `io-queue`: This module implements a basic queue to allow IO requests to be

received and handled in the order sent.