DataTorrent/Malhar — pull request #902 by tushargosavi (2014-04-17 08:49:16+00:00)
Title: MLHR-866 Annotating Stateless operators

Annotating stateless operators.

For some stateless operators, comments was mentioning the operator does not maintain any state, (First, MatchTill operators are using a boolean as a state), correcting that too

FirstMatchMap (emitted is a state)
FirstMatchStringMap (emitted is a state)
FirstTillMatch (emitted is a state)
FirstTillMatchString (emitted is a state)
InsertionSort (AbstractBaseSortOperator has pqueue and pmap as a state).