0.8.0

A few minor tweaks. Being completely honest, this is mostly me putting off doing actual useful things in the VSTest adapter - because I think I've gone about as far as can go by just hacking stuff together - and now need to properly get my head around the VSTest platform to turn it into a real fully-functioning test adapter. Anyway, the changes:

• Changed the ID of the Adapter package so that its no longer dictated by the naming convention for VSTest adapter assemblies. New package ID is FlUnit.Adapters.VSTest. I'll deprecate the old one.
• Dependency upgrades
• Added an icon, because why do real work when I can mess about in paint.net..