Update README_JENKINS.md
Update README_JENKINS.md

move pkill above hcluster install so you don't have to instruct user to exit out of 'su jenkins'
probcomp/crosscat,probcomp/crosscat,fivejjs/crosscat,mit-probabilistic-computing-project/crosscat,probcomp/crosscat,probcomp/crosscat,mit-probabilistic-computing-project/crosscat,poppingtonic/BayesDB,poppingtonic/BayesDB,mit-probabilistic-computing-project/crosscat,mit-probabilistic-computing-project/crosscat,fivejjs/crosscat,JDReutt/BayesDB,JDReutt/BayesDB,poppingtonic/BayesDB,JDReutt/BayesDB,fivejjs/crosscat,fivejjs/crosscat,poppingtonic/BayesDB,mit-probabilistic-computing-project/crosscat,mit-probabilistic-computing-project/crosscat,JDReutt/BayesDB,JDReutt/BayesDB,probcomp/crosscat,probcomp/crosscat,mit-probabilistic-computing-project/crosscat,fivejjs/crosscat,fivejjs/crosscat,probcomp/crosscat,fivejjs/crosscat,probcomp/crosscat,poppingtonic/BayesDB