update latest version of spring-data-common(1.6.x) & spring-data-jpa(1.4.x). #22

Reflect review comment of #39.
Please review #22 ,and merge to master branch.

By manually confirmed a feedback(bug fix) from spring-data-common and tested a terasoluna-functionaltest-web.
Not added test cases of Junit. I think that a test cases of Junit is not needed.