inits workflowbundle, and update dependencies
adds logs bundle
adds schema and build model
removes demo routes, adds DI for task aggregator
removes generated files
adds generated files to gitignore, restores concrete classes
remove auto gen files
adds generated to gitignore
modify theme bundle to only have template logic
adds a demo bundle to develop from a full functionnal simple task
Merge pull request #1 from extia/quentincerny-init-workflowbundle

[WIP] WorkflowBundle