Merged all identity maps into one in the unitofwork. identity map now properly works with hierarchies.

Refactorings along with a speed improvement on the Hydrator when processing joined resultsets. Other minor tweaks.

Ported fix for #929 from 0.10 to trunk. Testcase needs to be ported later since the behavior implementation is not useable in trunk atm.

merged fix for #912 from 0.10 to trunk (turned out it was not broken in trunk but i merged the patch & testcase anyway. Other refactorings.

refactorings, a bug fix (#786) and improved performance for the hydration of results from polymorphic queries.

moved managed record/entity handling to the UnitOfWork. identity maps are the next. started to remove obsolete table stuff.

Removed support to imbricated query added yesterday (which fixed ticket #782). The same thing could be easily achieved without need of Doctrine support, as mentioned in comments. Dev team decided to drop this support for now, but are considering for 1.0