New features

[87d18aa] Moved Doctrine migrations from src/migrations/ to migrations/ (@rosier) [398d18c] Run tests also against upcoming versions of Symfony (@rosier)

Bug fixes

[951c8b3] Fixed a method name related to exceptions (@xabbuh) [40194c6] Minor README updates (@bocharsky-bw) [7d625c2] Updated Chinese translations (@siganushka)