updated website app cache kernel & config
Enable app cache only, if environment is not 'dev'
Merge branch 'develop' of github.com:sulu-cmf/sulu-standard into feature/cache-expiration

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

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

Conflicts:
	composer.lock
updated app cache handling
Merge branch 'develop' of github.com:sulu-cmf/sulu-standard into feature/cache-expiration
updated web
merged with develop
Merge branch 'develop' of github.com:sulu-cmf/sulu-standard into feature/cache-expiration

Conflicts:
	composer.lock
updated translations
added translation for security types
included translations
added convertTo configuration for account types
updated to symfony 2.5
Merge branch 'develop' of github.com:sulu-cmf/sulu-standard into develop
updated composer
updated composer
updated composer
Merge branch 'develop' of github.com:sulu-cmf/sulu-standard into feature/convertable-accounts