[WIP] Tutorial Updates for 1.2
feature #595 [WIP] Tutorial Updates for 1.2 (dantleech)

This PR was submitted for the dev branch but it was merged into the master branch instead (closes #595).

Discussion
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[WIP] Tutorial Updates for 1.2

Updates and improvements for 1.2.

Note there is a problem in that the RoutingAutoBundle intializes before the initializer that we create in the last chapter, causing it to fail.

We need to add support for initializer priority: https://github.com/doctrine/DoctrinePHPCRBundle/pull/173

Commits
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dc3de60 [WIP] Tutorial Updates for 1.2