Squashed commit of the following:

commit a5a047b3c552aebe2607482c83d219d4f2f48862
Author: RashmiDR <rashmi@datatorrent.com>
Date:   Wed Oct 16 18:06:29 2013 -0700

    Parameterizing HighLow fixes #147
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
fix #330 Logical DAG Metrics
Merge pull request #331 from nickholub/logicaldag

fix #330 Logical DAG Metrics
Updating @since tags to 0.9.1
Created new release branch.  Updating master to 0.9.2
Squashed commit of the following:

commit 125c48377f2be2f3e9be92b6cbb5956f692deea2
Author: RashmiDR <rashmi@datatorrent.com>
Date:   Wed Nov 27 14:54:22 2013 -0800

    applying review findings to fix issue #316 issue #317
Merge pull request #335 from RashmiDR/fixIssue316Issue317_pull

Fix issue316 issue317 pull
Pulled in request #159 which fixes issue #147; fixed compile error in contrib/src/main/java/com/datatorrent/contrib/frauddetect/TransactionStatsAggregator.java and conflict in demos/src/main/java/com/datatorrent/demos/mobile/PhoneMovementGenerator.java
Merge branch 'master' into chart_overlays#328