merge pbeaman: Fixes bug https://bugs.launchpad.net/akiban-persistit/+bug/1073357 in which the Value#getType() returns Object.class rather than the true type of the value field when that field contains a duplicate of an earlier value.
https://code.launchpad.net/~pbeaman/akiban-persistit/fix-1073357-Value-getType/+merge/132758