Reduced max heap size from 2GB to 1.5GB. A 32 bit JVM apparently can't
contiguously allocate 2GB.
Upgraded to guava r14.
Reduce memory to 1.5GB.

Allows building on a 32bit JVM.
Ignoring Water jug look ahead test due to discovery of possible rete-net command bug

Bob is posting a bug report now
Merge branch 'master' into wma