Deploy with Installer (and updater)

[luttje]

trafficstars

The application is getting more and more files in each release. It's cumbersome for users to to download a zip, extract it to a single location, and open a specific executable (as they are instructed).

Installer

It would be nicer to have an installer perform the above installation procedure and (optionally) create a shortcut on the Desktop and in the Start Menu.

Updater

If there's enough time it would also be nice to have the app be able to update itself. The update would simply download the newest release from GitHub and replace the app with it.

[luttje]

If I have the time I'll work on this within a few weeks after #29 is completed.