Fixed typo in hints. Caused slow loading of eager entities.
Added test based on https://github.com/Ocramius/doctrine2/commit/e468ced00bd107f40fd08beca4c7cc5a2492a418
Added constant
Merge pull request #611 from stefankleff/fix-eagerloading

Fixed typo in hints. Caused slow loading of eager entities.
[DDC-2407] Fix missing support for UUID and CUSTOM id generators in Exporter