Added service_contailer files to sfCoreAutoload
Create sfServiceConfigHandler to load sfServiceContainer configuration and inject it into the context and task
Added missing services.yml for functional test
Add support of environments in service.yml files
Removed unused sfServiceContainerAutoloader
Removed file loaders, removed xml and yaml dumper
Added unit-tests
added core service sf_event_dispatcher
Added sfServiceContainer* classes to core_compile
Allows the service container to get parameters from sfConfig instead of injecting sfConfig::getAll()
Fix sfApplicationTask::getServiceContainer() + add unit tests