Update deploy-mobile-spec to work with new cordova-incl.js file

mobile-spec has been changed to automatically pull in platform specific JS files

Here is the pull request into apache to split out bb10 from bbos:
https://github.com/apache/cordova-mobile-spec/pull/17

To test this change, you will need the bb10JsLoading branch:


    jake deploy-mobile-spec[master,z10,169.254.0.1,device,qaqa,bb10JsLoading]