DDC-2197: [GH-534] [DDC-2196] Improved "extendability" of EntityManager

[doctrinebot]

Jira issue originally created by user @beberlei:

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

Url: #534

Message:

[DDC-2196 EntityManager can't be extended easily](http://www.doctrine-project.org/jira/browse/[DDC-2196]%28http://www.doctrine-project.org/jira/browse/DDC-2196%29)

EntityManager::create now uses "new static" instead of "new EntityManager"

[doctrinebot]

Comment created by @beberlei:

A related Github Pull-Request [GH-534] was closed
#534

[doctrinebot]

Comment created by @beberlei:

A related Github Pull-Request [GH-535] was opened
#535

[doctrinebot]

Issue was closed with resolution "Invalid"

[doctrinebot]

Comment created by @beberlei:

A related Github Pull-Request [GH-535] was closed
#535

[doctrinebot]

Comment created by @doctrinebot:

A related Github Pull-Request [GH-534] was closed:
doctrine/dbal#534

[doctrinebot]

Comment created by @doctrinebot:

A related Github Pull-Request [GH-535] was closed:
doctrine/dbal#535