* Start work on leveldb transactions
* Style
* Working API. Not plumbed in yet
* Move files into correct place
* Wrangling file locations and associations
* Tests pass
* Add some comments
* style
* Fix copyright
* Rewrite iterator internals to handle deletion-while-iterating. Also add tests for same
* Switch to strings instead of slices
* Style
* More style fixes
* Response to feedback before updating docs
* Style
* Add comment
* Initialize version_
* Satisfy the linter
* Fix style
* snake_case
* More snakes
* LevelDBTransaction -> LevelDbTransaction
