doctrine/doctrine2 — pull request #397 by Ocramius (2012-07-10 00:57:20+00:00)
Title: Cleanup/removing deprecated metadata drivers

Removing deprecated drivers that are already available in Doctrine\Common.
This PR depends on doctrine/common#164 and is a *BC Break*. For now it fails since the referenced git submodule for Doctrine\Common points to a commit that isn't yet in the common repository.

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