Removed unload from generated image tags, to avoid erroneous fileload events when an image's src changes.

Signed-off-by: Lanny McNie <lanny@gskinner.com>
Updated XHR support to include optional "headers" object, which is appended to the XHR request. The XMLHTTP support for Older IE was refactored in the process.

Signed-off-by: Lanny McNie <lanny@gskinner.com>
Updated VERSIONS, and built new Docs and Libs

Signed-off-by: Lanny McNie <lanny@gskinner.com>