Missing or invalid config results in very basic error page.

[DannyvdSluijs]

Simply the text: "Please, edit the config file and provide your repositories directory" is shown when the config contains an invalid repo location. This is due to the die method calls in Config.php

Where as there is a twig template (error.twig) to show a nicer error. This is an improvement and can be resolved later in time. Our first priority should be to work towards a stable release.

[alehaa]

@DannyvdSluijs can you open an issue in upstream for this feature (see #42)? Please close this issue when done.