Stable version of Segmentation.praat that can be used for both NWR & RWR TextGrids

This version of Segmentation.praat has the same functionality of the previous version, but can now be used on NWR files as well.  I've created a Word List for each of the currently available NWR files and saved them all in Tier2/DataAnalysis/NonWordRep/TimePoint1/WordLists/.