added get addresses to account
added flat api for account address relation
cleanup
changed glue in flat address api
added test for account addresses
Merge branch 'bugfix/media-tests' of git://github.com/sulu-cmf/SuluContactBundle into feature/account-addresses
fixed test for account addresses
Merge branch 'develop' of git://github.com/sulu-cmf/SuluContactBundle into feature/account-addresses
Merge pull request #142 from sulu-cmf/feature/account-addresses

[FEATURE] API for getting addresses of an account