Updated sbt project setting for assembly target.
Updated sbt project setting for assembly target.

mapr/shark,alabid/blinkdb,mapr/shark,amplab/shark,sjyk/sampleclean,alabid/blinkdb,mattyb149/blinkdb,mattyb149/blinkdb,sjyk/sampleclean,amplab/shark,lzshlzsh/shark,mapr/shark,sameeragarwal/blinkdb,lzshlzsh/shark,sjyk/sampleclean,alabid/blinkdb,sameeragarwal/blinkdb,sameeragarwal/blinkdb,mattyb149/blinkdb,amplab/shark,lzshlzsh/shark