pvclock

pvclock
=======

Pruning vector clocks inspired by vectorclock
and riak vector clocks.

``javascript
var pvclock= require('pvclock')({ small: 10, big: 50, young: 20, old: 86400 });

var vclock1= {}, vclock2= {};
pvclock.increment(vclock1,'Alice');
pvclock.increment(vclock2,'Alice');

pvclock.increment(vclock1,'Ben');
pvclock.increment(vclock1,'Dave');

pvclock.increment(vclock2,'Cathy');

console.log(pvclock.concurrent(vclock1,vclock2),
pvclock.merge(vclock1,vclock2))
``