Add underscore to library. Complete first draft of tree.
Change recursion solution to not require closure scope
Make tree instantiator initialize .value and .children
Implement BST instantiator, contains method, and depthFirstLog method
Complete first draft of insert method of BST
Impelment binarySearchTree.insert()
Impelement binarySearchTree.breadthFirstLog()
Refactor while loop condition
Begin scaffolding for prefix tree
Check existing branches in .insert() method
Complete first draft of prefixTree's .insert() method