Removed Minecraft Regular preview image.

Signed-off-by: Patrick Dinklage <Patrick.Dinklage@materna.de>
Simplified .gitignore.

Signed-off-by: Patrick Dinklage <Patrick.Dinklage@materna.de>
Minor style modification.

Signed-off-by: Patrick Dinklage <Patrick.Dinklage@materna.de>