Add un-minified Angular and source mappings to aid
in debugging infinite digests. These are occurring
when leaving Edit mode, e.g. after editing a Layout,
so this is needed to complete transition of the
Layout object type. WTD-535.
Add Promise polyfill to version control. Promise objects
are included in ECMAScript 6 and browser support is
present, but non-universal. Using the polyfill approach
permits the use of Promise directly throughout the
application without relying on bleeding-edge browser
support.
Promises are useful at the framework level particularly
because of the number of asynchronous calls made when
assembling bundles. Framework layer is WTD-518.
Add libraries for Angular and Require. This expands
folder structure to support initial build (WTD-519)
and also directly supports implementation of a
framework layer (WTD-518).
