Close to final version.
The DOPAScheduler is executable by itself. It contains a main-method to starts up.
The DOPAClient is although executable but just to show the principles behind the decleration
and connection of the DOPAClient. You can use it as the library as it is. (DOPAClient API)

Please be notice that the submit-process behind the job isn't tested yet. Although the
connection to HDFS i't tested.

Change-Id: I80682f853e1d734c630cf180c1fead5f9c71d354
Merge pull request #4 from AndreG-P/schedulerCloseToFinal

Close to final version.