Fixed another function instantiation bug and added a JDBC datasource function and a powerful debugger function. Other functions which used database is updated to use the datasource function instead of being hardwired to the PostgreSQL database. Also, documentation is improved and javadocs is now included (still work to be done there though).
Note that to use the datasource function, the Jakarta Commons DBCP and Pool libraries must be present in the context. They can be downloaded from here by the way·
