Added 'scala-*' to 'fat-jar' profile in '*-datagens' POM.
Added 'scala-*' to 'fat-jar' profile in '*-datagens' POM.

Fixes stratosphere/peel#81.

peelframework/peel-wordcount,stratosphere/peel-wordcount,aalexandrov/peel-wordcount,aalexandrov/peel-wordcount,peelframework/peel-wordcount,stratosphere/peel-wordcount