chore(rollup): bump to the latest version of rollup

[jgravois]

to support multiple output files (and make sure to ship our copyright notice)

i thought i was laying the groundwork for #135, but TrySound/rollup-plugin-uglify#1 indicates that we'll need to spin up two different instances of rollup to create both built and unbuilt output.

ISSUES CLOSED: #136

[coveralls]

Coverage remained the same at 100.0% when pulling 302fa85 on patch135 into e2b05b2 on master.

[jgravois]

pushed up another commit that kicks off two rollup commands for each package so that we can ship a second unminified UMD.

[patrickarlt]

@jgravois these changes look good but it would be a good idea to point browser in each package to the unminifed file. That way the unminifed version will be picked up by whatever build system people are using which will make debugging easier.

[tomwayson]

I will make that change, and test that in the feature layer dummy app and cedar now.

[tomwayson]

I was going to point browser to the unminified file as per @patrickarlt's suggestion, but it seemed odd to have that pointing to a file w/ "debug" in the name. I think it's more common to specify the minified files w/ .min.js - take bootstrap for example. So I updated the profiles accordingly. This meant that I didn't need to update the browser field of all the package.json files.

I tested this w/ both the features sservice demo app, and a branch of cedar configured to treat arcgis-rest-* as external, and it works w/ both the unminified and minified files.