Refactor Runner.
Modify log output format.
If a file to be included doesn't exist, raise an error.
Do not include recipes that are already included.
Find a resource recursively.
Refactor.
Fix tiny bugs.
Pend a spec...
Rename find_by_description to find_resource_by_description.
Find resources recursively.
Fix a bug.
Rename RecipeDependencies to RecipeChildren.