[clean] Remove method from FormType
[clean] Remove parameter from services.yml
[clean] fix comment
[upgrade] symfony 2.3 to 2.4
[clean] remove swift mailer from services.yml
[PaymentType] fix test failure
[IncomeType] fix test failure
[Payment] fix test failure
[Income] fix test failure
[User] fix test failure
Merge branch 'feature/upgrade-symfony2.4'