Added Vkontakte response class
Service does not return the first and last name in one field
Changed Vkontakte resource owner
Transferred receiving information about the user through the new API, as the previous method does not work.
Fixed CS
Removed Vkontakte response
Redone to reflect changes in #348
Added missing tokenSecret in OAuth1
Added Mail.ru
Merge pull request #367 from nixilla/master

Added missing tokenSecret in OAuth1 serialize/unserialize
Cleanup previous merge
Merge pull request #365 from jiminy/mailru

Added Mail.ru
Merge pull request #345 from vlastv/patch-vkontakte

Patch vkontakte
Some cleanup of code:
- type-hint objects when possible,
- don't use container parameter in constructor
- reduce usage of container
- remove some code duplication
- made configuration a bit more readable
Refactor code to use Symfony OptionResolver component
Fix problem with twig extension after refactoring, cleanup after review