process content document regardless of its type. various small cleanups
more cleanup: less object properties
Merge pull request #60 from dbu/process-all-document

process content document regardless of its type. various small cleanups
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
test for content listener
implement class for "document not found exceptions"
implement class for "document not found exceptions"

refactor name
refacotoring after rebase
Merge branch 'exception-handling'