added sulu_webiste routing
implemented sitemap example template
fixed sitemap html generation
Merge branch 'develop' of github.com:sulu-cmf/sulu-standard into feature/sitemap

Conflicts:
	composer.json
	composer.lock
Merge branch 'master' into develop

Conflicts:
	composer.json
	composer.lock
Merge branch 'develop' of github.com:sulu-cmf/sulu-standard into feature/sitemap

Conflicts:
	composer.json
	composer.lock
Merge branch 'develop' of github.com:sulu-cmf/sulu-standard into feature/sitemap
adapted interface
added request format example
Merge branch 'develop' of github.com:sulu-cmf/sulu-standard into feature/sitemap
fixed sitemap tempalte
Merge branch 'develop' of github.com:sulu-cmf/sulu-standard into feature/request-format
adapted tempalte
added error page example
Merge branch 'develop' of github.com:sulu-cmf/sulu-standard into feature/request-format
Merge branch 'feature/request-format' of github.com:sulu-cmf/sulu-standard into feature/request-format
updated rss template to new twig variables
Merge branch 'feature/sitemap' into develop
adjusted templates
Merge branch 'feature/request-format' into develop