Update HelloStreaming

Update HelloStreaming
Add batch file for copying binaries for running activities
Add git ignore for dotnet folder
Merge pull request #654 from Microsoft-CISL/HelloStreamingUpdate

Julia - Hello streaming update
make run.cmd script work exactly like its unix analog run.sh
Merge branch 'master' of github.com:Microsoft-CISL/REEF
Added NOTICES.TXT
Update README.md
Update README.md
Updated licenses on all files
Merge branch 'master' of https://github.com/Microsoft-CISL/REEF
Update run.cmd

Adding %YARN_HOME%\etc\hadoop\; to the classpath
update copy script
Merge pull request #655 from Microsoft-CISL/julia-update-run-script

Julia update run script
Merge branch 'master' of https://github.com/Microsoft-CISL/REEF into shravanmn_groupcom