Some improvements...
#215 when creating an new empty record (like .item({}) ) a more random id is generated instead of timestamp
#206 when nothing is changed (like overwrite with similar data) a record will not sync
#203 record now have a time to live ( .ttl() ) setting. Default will be the existing max_age, but this can be changed per_record. It should still work with older versions of cow
#158 peers that have been deleted are now purged on and off so the peers array doesn't flood
#188 removed syncRecords function (wasn't used)