boltdb/bolt — pull request #47 by benbjohnson (2014-02-20 20:56:29+00:00)
Title: Bidirectional cursors

## Overview

This pull request changes cursors from being forward-only to being bi-directional.

Reference issue: #46.

## API Changes

There are two new methods added to `Cursor`:

```
func (c *Cursor) Last() (key []byte, value []byte)
func (c *Cursor) Prev() (key []byte, value []byte)
```

/cc @tv42