ISPN-3281 Deadlock in non-transactional caches during rebalance

If the topology id on the primary owner is greater than the one on the
originator, send the command back to the originator with the higher
topology id.
ISPN-3274 Cleared legacy Configuration imports in Server modules
ISPN-3242 ISPN-3284 Enforce building against JDK7 and drop useless dependencies

Build against JDK7 but verify that we are compatible with JDK6.
Run testsuite against JDK6 if the JAVA_HOME_16 environment variable is set
Drop useless dependencies which we had to keep around because of http://bugs.sun.com/view_bug.do?bug_id=6550655
Other minor pom cleanups