Added basePath support to LoadQueue and all loaders. Specify a basePath on a whole queue, or individual loadFile/loadManifest calls.

Signed-off-by: Lanny McNie <lanny@gskinner.com>
Comment updates, including doc fix to progress "progress" properties.

Signed-off-by: Lanny McNie <lanny@gskinner.com>
Updates to help support older IE.

Signed-off-by: Lanny McNie <lanny@gskinner.com>
Updated docs and libs with latest API and doc changes.

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