Added bootstrap action to jobflow in order to update lucene to 4.8.1; Also added script to clean output dirs before running job flow.
Added calculate to job flow
Merge branch 'master' of https://github.com/liranoz12/dsp

* 'master' of https://github.com/liranoz12/dsp:
  adding totalRecord counter, uploading the result to s3
Updated docs and amazon args index
uploading results from each step to s3