Support for nuget packages #264

I think the default template should support nuget packages in a smart way. I'm pretty new to plaster, so this is kind of hand wavy. I'll try to Give more details once I understand how the sausage works.

• nuget configured to install stuff to the bin folder.
• The RequiredAssemblies property in the psd1 be modified to loop thorough all DLLs in bin\
• An empty packages.config with some commented out helpful things.