Refactor Manager (https://github.com/sonata-project/SonataCoreBundle/commit/2391040a4d0f47cce1be2add4eb8089ad346f8ac)
Adjust composer.json
Fixed messages recursion with postpone backend
Merge pull request #111 from sylvaindeloux/SONATA-378

Fixed messages recursion with postpone backend
Fixed message restart
Merge pull request #112 from sylvaindeloux/master

Fixed message restart
Merge branch 'sonata-project/master'