DDC-2529: [GH-709] add getManager

[doctrinebot]

Jira issue originally created by user @doctrinebot:

This issue is created automatically through a Github pull request on behalf of tvlooy:

Url: #709

Message:

getEntityManager is deprecated in Symfony2 (and gone in 2.3). It would be nice if Doctrine followed this (or at least added the getManager call) ot make it consistent. sensiolabs/SensioGeneratorBundle#123

[doctrinebot]

Comment created by @doctrinebot:

A related Github Pull-Request [GH-709] was closed:
#709

[doctrinebot]

Issue was closed with resolution "Invalid"

[doctrinebot]

Comment created by @doctrinebot:

A related Github Pull-Request [GH-709] was assigned:
doctrine/dbal#709

[doctrinebot]

Comment created by @doctrinebot:

A related Github Pull-Request [GH-709] was closed:
doctrine/dbal#709