adjust kernel.controller listener priority

change it to -10 to match the change to sensio/framework-extra-bundle
use ~2.1 for all symfony deps
modified ViewHandler to allow responses with status 201 ("Created") and content
fixed code style
corrected suggest for jms serializer bundle
updated branch alias
Merge pull request #451 from nils-wisiol/master

Allowing 201 responses with content
Fixed status code issue with annotation.

Deleted comments
Fixed CS
Merge pull request #1 from blaugueux/patch-2

Fixed CS
Merge pull request #454 from remyLemeunier/fix-status-code

Fix status code when using @View annotation.
Avoid double check on the configuration.
Merge pull request #457 from remyLemeunier/fix-status-code

Avoid double check on the configuration.
Added compatibility with Symfony 2.2.1
Merge pull request #458 from fightmaster/compatibility-with-symfony-2-2-1

Added compatibility with Symfony 2.2.1
fix docs
always return a SerializationContext
Merge pull request #420 from jrobeson/fix-controller-listener-priority

[WIP] adjust kernel.controller listener priority
ws fixes
since we now always have a context, we need to check if differently if we need to set the default groups/version