Should let exception propagate to upper level instead of returning false.

Since http kernel sees false as no _controller attribute found.
Delays event subscriber registration
Added 'sdispatcher.route.rest' to controll all middlewares
Fixed spec tests for previous commit
Merge branch 'controller-resolver-refactor' into delay-listener-registration

Conflicts:
	src/SDispatcher/SDispatcherServiceProvider.php
Merge branch 'delay-listener-registration'
Made RequiredServiceMetaProviderInterface optional
Updated README
Updated README