Almost implement insert
Fix pointer deref
Create additional impl block for PartialOrd
Use Box instead
Implement Inserting into empty tree
Implement insert_into_empty_tree()
Use insert_into_empty_tree() in insert()
Write skeleton
Flesh out skeleton some more
Implement insert
Remove unnecessary function
Clean up code by removing unnecessary return types

- Fix test
- Comment out dead code
Remove unnecessary trait restriction
Add a more descriptive comment for closing brace
Fix bug and implement test for insert()
s/get_// for all getters.

Add one more subtest
Merge pull request #10 from samebchase/implement-insert

Implement insert()