- Added method QueryDB::get
- If query has one parameter, you can also call select() with just the parameter value as argument
- Removed option to set DB credentials per server
- Changed default value of QueryDB::nested to 'true'
- Simplified global query parameter methods to single get/set method QueryDB::param
- Removed all old global query parameter methods from QueryDB
- Added documentation
- Renamed QueryDB::doQuery to QueryDB::execute for consistent naming