Do not prefix dcr:name with selector prefix

The jackalope `QueryResult::getNodes` method iterates over all of the rows and extracts the paths by accessing the `dcr:name` property with the value `jcr:path`.

In doctrine-dbal however we get `c.jcr:path` (for e.g. `SELECT foo AS c`.

Is this an obvious mistake or is there some reason that this was done like this?