updated dependencies
added staging environment
updated travis config & added new router for the built-in web server
updated dependencies
updated webspaces dist
added translation
updated dependencies and translations
updated dependencies
Merge branch 'develop' of github.com:sulu-cmf/sulu-standard into feature/staging-environment

Conflicts:
	composer.lock
Merge pull request #168 from sulu-cmf/feature/staging-environment

[Feature] Added staging environment
updated dependencies
added new translations
Merge branch 'develop' of github.com:sulu-cmf/sulu-standard into develop
updated dependencies
Update UPGRADE.md
Merge branch 'develop' of github.com:sulu-cmf/sulu-standard into develop

Conflicts:
	composer.lock