Require DoctrineBundle 1.0
Require DoctrineBundle 1.0

We use the "doctrine" service, which is defined by this bundle. We are
not compatible with the version 2 of the bundle yet, and should thus
restrict ourselves to version 1.

Fixes #620

sonata-project/ecommerce,sonata-project/ecommerce,sonata-project/ecommerce,sonata-project/ecommerce