doctrine/doctrine2 — pull request #160 by goetas (2011-10-19 07:21:32+00:00)
Title: Allow to unset one-to-one relation with generated class

Added on generated class.
This generate methods like:
```function setGroup(Group $group = null){
}
```

that allow to remove "Group" association if the relation is one-to-one.

Plus some indentation issue