Merge pull request #2 from wking1986/master

refactor and add logstash mongodb,esearch script
Merge pull request #3 from wking1986/master

add kafka mongodb elasticsearch logstash provision
zookeeper & nimbus & supervisor & ui provision are tested OK now. add mem and cpu usage of single vm.
Merge pull request #4 from castomer/localbranch

strom dev env provision scripts are tested OK.
fluentd -> kafka are tested OK(through zookeeper).
1.add fluentd provision script
2.turn iptables service off in provision scripts
3.update /etc/hosts in Vagrantfile
Merge pull request #5 from castomer/localbranch

fluentd -> kafka are tested OK(through zookeeper).
add provision fluented and others