Updated NEWS for 3.1.3 release

NEWS.txt

+---------------- VERSION 3.1.3  --------------
+Improvements:
+- New Embedded File Extractor module that incorporates ZIP file module and extracts images from Office documents
+- Views area counts updates when ZIP files and such are found
+- Updates to python scripting for new version of Python, scripts are reloaded each time ingest is run, and errors are better shown.
+- Updated right click actions to be consistent accross all file types
+- Changed logic of Interesting Files module to look for substrings of parent path. 
+- Lots of minor fixes and enhancements
+
+
 ---------------- VERSION 3.1.2  --------------
 Improvements:
 - New PhotoRec carving ingest module