Copied index.html to app/ directory,

because when I shortly remove all the Visual Studio files, the index file
is still going to be required.
Moved app/ directory into root directory,

and deleted all Visual Studio/.NET files/artifacts, because the front-end
should not have to rely on .NET. Obviously, right now, the site isn't
really going to work, because there's no underlying API to served tasks,
etc.
Added various files for testing with karma etc.

This file structure was originally based on Angular Seed, but here I
copied the files from my repository at
https://github.com/ploeh/booking-web-ui (because I know it works), and
modified the files to fit this project.

The unit tests (scripts/test.sh) run, although there are currently no unit
tests in the code base.

The end-to-end tests currently throw an exception when you attempt to run
them.
Hard-coded some tasks into the only available

AngularJS service, in order to (temporarily) disconnect the UI from
depending on an available HTTP API.