Fix warnings in Javascript API

Idea created by jon.morris on Oct 7, 2015
    Implemented
    Score50
    • NSWRFS
    • fiona.renton
    • jwarzi
    • jon.morris
    • cadrin
    When I load my site, I get some warnings in the developer console. Could you fix them in the next version please?

    Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check http://xhr.spec.whatwg.org/. [http://js.arcgis.com/3.14compact/init.js]

    The XMLHttpRequest progress event property 'position' is deprecated. Please use 'loaded' instead. [http://js.arcgis.com/3.14compact/init.js]