changed string id in test save5 because seneca-shard-store could only support uuid as id for entities
changed string id in test save5 because seneca-shard-store could only support uuid as id for entities

piccoloaiutante/seneca-store-test,piccoloaiutante/seneca-store-test,thekemkid/seneca-store-test,senecajs/seneca-store-test,thekemkid/seneca-store-test,maxired/seneca-store-test,maxired/seneca-store-test,rjrodger/seneca-store-test