removed support to pass in a content instance via a 'content' parameter
handle more cases for debug message on no match
clarify exception message
fix test
Merge remote-tracking branch 'origin/master' into remove_content_parameter_support

Conflicts:
	ChainRouter.php
re-apply the changes from the other branch
cleaning up getRouteByContent, cs fixes
ws tweaks
fix typos
Merge pull request #48 from symfony-cmf/remove_content_parameter_support

removed support to pass in a content instance via a 'content' parameter