消除重名现象，对象clone问题
Merge branch 'master' of https://github.com/klisly/ontology.git

Conflicts:
	QAOntologyLibrary/logs/ontology.log
	QAOntologyLibrary/src/cn/vcg/qa/ontolog/QueryScheduler.java
	QAOntologyLibrary/src/cn/vcg/qa/ontolog/SemanticEngine.java
	QAOntologyLibrary/src/cn/vcg/qa/ontolog/entity/TripleMeta.java
	QAOntologyLibrary/src/cn/vcg/qa/ontolog/queryinterpreter/FullQueryInterpretor.java
	QAOntologyLibrary/src/cn/vcg/qa/ontolog/queryinterpreter/OnlyTargetQueryInterpretor.java