mussels is very confusing when using local recipes

[micahsnyder]

The clamav-mussels-cookbook contains some subdirectories:

• collections
• recipes
• tools

If you run msl build from any one of these subdirectories it may fail to find the dependencies. If if you build in recipes it might not find the cmake tool. If you build in collections it might not find the libz recipe.

The failure is pretty confusing. My best idea right now to round this sharp corner would be if Mussels would show what recipes were loaded relative to the current directory, it would may be more obvious when a recipe can't be found because it wasn't loaded.