compute field distances without squareform, close #364
compute field distances without squareform, close #364

datamade/dedupe,01-/dedupe,dedupeio/dedupe,pombredanne/dedupe,nmiranda/dedupe,01-/dedupe,neozhangthe1/dedupe,dedupeio/dedupe,pombredanne/dedupe,davidkunio/dedupe,tfmorris/dedupe,neozhangthe1/dedupe,datamade/dedupe,nmiranda/dedupe,tfmorris/dedupe,davidkunio/dedupe