factored coverage related functions into separate class
factored coverage related functions into separate class

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