SINGA-21 Code review
SINGA-21 Code review

modify the header guard style in cpplint
  -- change from INCLUDE_PATH to SINGA_PATH

nusdbsystem/incubator-singa,apache/incubator-singa,venkatsatish/incubator-singa,nudles/incubator-singa,devfreesg/incubator-singa,litoupu/incubator-singa,jaejaejae/incubator-singa,ijingo/incubator-singa,kaiping/incubator-singa,pthaike/incubator-singa,cszqwe/incubator-singa,nusdbsystem/incubator-singa,nudles/incubator-singa,xindaya/incubator-singa,wangsheng1001/incubator-singa,pthaike/incubator-singa,nusdbsystem/incubator-singa,venkatsatish/incubator-singa,jaejaejae/incubator-singa,SeSaMe-NUS/incubator-singa,SeSaMe-NUS/incubator-singa,jinyangturbo/incubator-singa,SeSaMe-NUS/incubator-singa,apache/incubator-singa,ijingo/incubator-singa,nusdbsystem/incubator-singa,jinyangturbo/incubator-singa,kaiping/incubator-singa,cszqwe/incubator-singa,zhoujingbo/incubator-singa,zhoujingbo/incubator-singa,SeSaMe-NUS/incubator-singa,xindaya/incubator-singa,devfreesg/incubator-singa,litoupu/incubator-singa,cszqwe/incubator-singa,wangsheng1001/incubator-singa,zhoujingbo/incubator-singa,devfreesg/incubator-singa,ijingo/incubator-singa,wangsheng1001/incubator-singa,wangsheng1001/incubator-singa,venkatsatish/incubator-singa,cac2003/incubator-singa,cac2003/incubator-singa,xindaya/incubator-singa,kaiping/incubator-singa,devfreesg/incubator-singa,pthaike/incubator-singa,cac2003/incubator-singa,nudles/incubator-singa,nusdbsystem/incubator-singa,jaejaejae/incubator-singa,litoupu/incubator-singa,cac2003/incubator-singa,jinyangturbo/incubator-singa,apache/incubator-singa,apache/incubator-singa,pthaike/incubator-singa,kaiping/incubator-singa,jinyangturbo/incubator-singa,ijingo/incubator-singa,litoupu/incubator-singa,apache/incubator-singa,jaejaejae/incubator-singa,venkatsatish/incubator-singa,zhoujingbo/incubator-singa,xindaya/incubator-singa,ijingo/incubator-singa,nudles/incubator-singa,nudles/incubator-singa,kaiping/incubator-singa,cszqwe/incubator-singa,wangsheng1001/incubator-singa