ISPN-3038 jcache module pom should honor skipTests property

Add the skipTests property to the list of command line properties passed to the child build.
ISPN-3031 Forked module builds ignore log4j.configuration passed on the command line
ISPN-3034 Query should also filter out nulls when retrieving results through CacheQuery.iterator()
ISPN-907 HotRod SSL
ISPN-2609 Infinispan SpringCache throws java.lang.NullPointerException:
Null values are not supported!

Add support for storing null values in and retrieving null values from a
SpringCache. Use solution provided by Roland Csupor as a starting point.

* Introduce NullValue, a singleton class that represents a null value in
a
cache.
* Make SpringCache use NullValue for representing null values in wrapped
Infinispan cache.
Remove unused class MembershipArithmetic
ISPN-2814 RpcManager doesn't return values properly

* Add proper wrapping of ReplicableCommand return values/exceptions into Response objects, to behave exactly as in case of CacheRpcCommands
* Add unit test using some custom commands to prove result wrapping works identically for CacheRpcCommands and ReplicableCommands in general
* CommandAwareRpcDispatcher checks i the result is already a Response to avoid double wrapping for legacy commands that do their own wrapping internally
ISPN-3033 Lucene index stored in a StringBased CacheStore can get an unaligned bufferSize

There is no test as there was a test already; just that the existing test wouldn't
catch this case because the bufferSize wasn't part of the equals contract: the
assertion used the key.equals to verify correct interpretation.
Fixing the equals activated the unit test: org.infinispan.lucene.Key2StringMapperTest

NoopSegmentReadLockerTest had to be fixed too as there was a mistake which wasn't spotted
as it also took advantage of the same equals flaw.
ISPN-3041 Verify Query tuning parameters are applied
ISPN-3026 Upgrade Query to Hibernate Search 4.3.0.Alpha1