Support 0.13
Cheshire 5.x
Riak Java client 1.1.0
clj-http 0.6.4
Change log updates
Changes for Riak Java client 1.1.0
Filter out tombstones the same way Riak Java client 1.1 does

Riak Java client 1.1 will return tombstones if a fetch request is
configured to do so. However, the tomstones are filtered out in their
"higher level" client (FetchObject#execute), not RawClient which Welle
uses. So we have to apply the same filtering logic using a newly introduced
method, IRiakObject#isDeleted.

See https://github.com/basho/riak-java-client/commit/416a901ff1de8e4eb559db21ac5045078d278e86
for more information.
Document welle.kv/fetch options and tombstone handling
Change log update
1.4.0
Now working on 1.5.0-SNAPSHOT
README updates for 1.4.0
Test against Clojure 1.5.0-RC16