Zend\DB cleanup
Zend\DB cleanup

- Moved all interfaces up a level
- Flattened Zend\DB\Table class hierarchy
- Cleaned up "orphaned" subcomponents
  - If they consisted of a class and an exception, moved them up a level
- Updated dependent code to reflect the above changes

MadCat34/zend-authentication,Maks3w/zend-authentication,lynnint/zend-authentication,malukenho/zend-authentication