* Removes old replication.proto file, old command_transform library * Removes use of korr.h macro calls in favor of GPB's CodedOutputStream API. * Updates transaction_log, default_replicator, and filtered_replicator module to use new Transaction message. * Updates ReplicationServices to construct the new Transaction messages and associated Statement sub-messages * Corrects transaction boundaries. AUTOCOMMIT now works properly, and I have added a new test case to verify AUTOCOMMIT variable modification of the way in which Transaction messages are bundled up and sent across to replicators.