db class cleanup
db query builder cleanup
db query builder fixed support for unions
db query builder tests updated
db query builder completed lock methods
db query builder tests lock methods
db query builder tests cleanup
db query builder bugfix for increment key
db query builder tests up
db query builder up
db query builder tests up
db query builder real tests up
db query builder real tests up
db query builder bugfix
db query builder real tests up
db query builder real tests up
db query builder up
db query builder unit tests fixed
db query builder insert() bugfix
db query builder real tests up