Improve hat-trie readability?

[canadaduane]

I'm really excited to work on this some more. How would you feel about my making some documentation and variable name changes to the hat-trie code? For instance, it took me a while to figure out that ".b" is referring to "bucket" and ".t" is a "trie_node". I think it would help newcomers to this codebase. Should I approach dcjones about his code base? I almost think these (your hat-trie fork and his) should be merged, since you've added a lot of value with your fork. Then my additions (notes, variables names, etc.) would help both code bases.