Make installable with webpack

[christiaanwesterbeek]

This change is required to allow ng-inline-edit to be importable with es6 and bundled with webpack and AngularJS 1.x. Without the change, this is the error that occurs when running the angular app.

Uncaught Error: [$injector:modulerr] Failed to instantiate module nprc-portal due to:
Error: [$injector:modulerr] Failed to instantiate module {} due to:
Error: [ng:areq] Argument 'module' is not a function, got Object

Btw, the tests were already failing before my changes on my local machine due to some PhantomJS problem and a requirement for an older Node.js version.