Fix MySqlAdapter superclass bug via class_eval loading of superclasses
DRY method call, well spotted @parndt
Cleanup private method indentation in truncation
Added Mysql2 driver support.
Merge pull request #1 from ombushop/fix-superclass-1-1-1

Added Mysql2 driver support in order to avoid NotImplementedError
use class_eval loading of superclasses for deleteion strategy too and
collapse the indentical deletion strategies into a single GenericDeleteAdapter
Merge pull request #2 from jnimety/fix-superclass-1-1-1

use class_eval loading of superclasses for deletion strategy too
Merge pull request #241 from tommeier/fix-superclass-1-1-1

Fix MySqlAdapter superclass bug via class_eval loading of superclasses