add LevelDB tests
Fix the preload attribute parsing
 Modified xsl to config logging from command line
Create a test jar for the testsuite
Added profile to run testsuite with jdk6
ISPN-3583 Add optional infinispan-query.jar to org.infinispan module so query config validation can work

Also remove sample-domain-definition dependency which is not used directly
Create an abstract class for REST client tests
ISPN-3703 Fix infinispan-defaults.xml schema