ISPN-3854 Tests from org.infinispan.eviction package fail randomly with JDK7 and constantly with IBM JDK6

* always lock when load from persistence and put in memory
ISPN-3871 Server testsuite fixes
JBQA-8324 server tests for eviction, expiration, file and custom cachestores
ISPN-3867 L1 cache of ISPN server cannot be enabled

* Made sure L1 is enabled properly in server when lifespan is configured
* Also changed l1OnRehash to not be enabled by default
ISPN-3801 Test for jgroups auth/encrypt protocols fails on IBM7