Drop ResolveDeps, and the Tree structure #20

pkg/tree/builder.go

@@ -23,8 +23,8 @@ import (
 type Builder interface {
 	Save(string) error // A tree might be saved to a folder structure (human editable)
 	Load(string) error // A tree might be loaded from a db (e.g. bolt) and written to folder
-	Tree() pkg.Tree    // generates world
-	WithTree(pkg.Tree)
+	GetDatabase() pkg.PackageDatabase
+	WithDatabase(d pkg.PackageDatabase)
 
 	GetSourcePath() string
 }