title: erlang thrift cassandra multiget_slice returns empty list
body: <p>I am having issues with multiget_slice cassandra thrift interface in erlang. I am able to get data back from multiget_count for the same set of keys however multiget_slice returns an empty list. I am using thrift 0.8.0 and cassandra 1.0.6. Here is my code</p>
  
  <pre><code>Keys = [&lt;&lt;"key1"&gt;&gt;, &lt;&lt;"key2"&gt;&gt;],
  ColumnParent = #columnParent{column_family=ColumnFamily},                                                                                           
  SliceRange = #sliceRange{start="", finish="", reversed=false, count=2147483647},
  SlicePredicate = #slicePredicate{slice_range=SliceRange, column_names=undefined},
  
  {ok, Conn} = thrift_client_util:new(Host, Port, cassandra_thrift, [{framed, true}]), ok,
  {Conn2, {ok, ok}} = thrift_client:call(Conn, set_keyspace, [Keyspace]),
  {NewCon, Response} = thrift_client:call(Conn2, multiget_slice, [Keys, ColumnParent, SlicePredicate, 1]),
  
  Response returns the following: {ok, []}
  </code></pre>
  
  <p>However running multiget_count on the same set of keys yield an appropriate result. What am I doing wrong here?</p>