Service wrapper that uses topshelf to run @geteventstore

To install do the following:

1. Download Event Store from http://geteventstore.com.
2. Download a release from releases and unzip somewhere where you know where it is.
3. Update config file with location to the Event Store exe to run and the instances you want to run.
4. Run the install.ps1 script from the release.
5. Enjoy Event Store

Code copied from this gist: https://gist.github.com/trbngr/5083266