version bump 0.3.0
version bump 0.3.0

potentially breaking changes, hence minor version upgrade.

piccoloaiutante/seneca-orientdb-store,rualatngua/seneca-orientdb-store,iantocristian/seneca-postgresql-store,marianr/seneca-postgres-store,piccoloaiutante/seneca-postgresql-store,senecajs/seneca-postgres-store,BloomBoard-Research/seneca-postgresql-store,nherment/seneca-postgresql-store,dberesford/seneca-postgresql-store