refactor abstract+concret class
refactor seo presentation, replace title/content params by seo params, replace title/description pattern by using translator
fix for tests
fix injection
adjust configuration and its tests
undo sonata core in test bundle registration
fix test stuff
little changes
actual translation settings
 attributes instead of elements
add tests
add value object for config
refactor parameter key names and parameters for translation
frontendtest for new title/description creation
test for not-set default values for title/description
Merge branch 'refactor-seo-presentation-translation'