aerospike/aerospike-client-go — pull request #40 by kalloc (2014-12-20 15:24:11+00:00)
Title: support custom digest for key

I would like to add a new method which return a key with custom digest.
```
var key aerospike.Key = NewKeyWithDigest(…, digest)
```
Sometimes I want delete item which fetched from query, but I can't because I don't have primary_key.