Squashed commit of the following:

commit e9c0ac04e0b2bc8caa91d8ae79861662367a16f5
Author: RashmiDR <rashmi@datatorrent.com>
Date:   Thu Nov 21 11:32:40 2013 -0800

    providing tupleSize and emitSameTuple as properties to randomword generator operator, fixes #316 and #317