Removed job-flow.sh and renamed run-step to run-class.sh, it can do everything job-flow.sh can do.
adding in files
Fixed error in Join.java
Merge branch 'master' of https://github.com/liranoz12/dsp

* 'master' of https://github.com/liranoz12/dsp:
  adding in files
created input dir in/ and moved input file 'in' into it, naming it count (because it is input for Count class
Added Join test input file
updated hadoop version to 0.2.2