Added capability to specific different Postgres instances.

// These are the DB Alias Instance referenced in BasicConnections.json.
public final static String DB_ALIAS_DEFAULT = "default";
public final static String DB_ALIAS_OBJECTS = "objects";
public final static String DB_ALIAS_LOGS = "logs";

The default SHALL exist, others are optional and will delegate to the default instance.
Merge branch 'master' of https://github.com/idevcoop/ctp-conf-dev