DATAJPA-485 - Upgraded build profile to Hibernate 4.2.11.
DATAJPA-500 - Verify that sorting of Embeddables with Querydsl works.

Added test case to verify that sorting by nested embedded attributes with querydsl expressions works. Previously a ClassCastException was thrown due to changes in org.springframework.data.jpa.repository.support.Querydsl.

Original pull request: #70.