Fixed OSGi itest build error of JpaRouteTest with Spring4.x
Revert "expand the Spring version range to include Spring 4.0.x after we set Spring 4 as default"

This change confuse the karaf and break the OSGi integration tests

This reverts commit 0b55370096efe59f2dc527a214747fd16f38132a.
Fixed the NPE of JpaRouteTest