basho/riak_kv — pull request #663 by Vagabond (2013-09-18 19:16:54+00:00)
Title: Modify the version 1 format to support bucket types

The new keydir format has 2 forms, as follows

<>
<>

The 8th bit of the binary is the bit that indicates if a bucket type is
present, and tells the decoder which form to expect.

Both the eunit tests for riak_kv_bitcask_backend and the bucket_types riak_test pass against this branch.

cc @evanmcc