Needs to be fixed up to be part of the package but seems to work correctly.
Moving comments
Changed phrasing
Commented out most debugging.
Removed most commented-out code
Demo of Entry as a binary tree.
Added test, moved tree into Entry.
Ripped out most of the ClosureTable code, converted entry to binary tree, removed no-longer-used queries.
Merge branch 'tree'

Removing reliance on closure tables, removing reliance on interface{} binary tree.

Now directly making Entry into a binary tree to remove some needless abstraction.
Ran gofmt