integer to string routine no longer public.
other minor changes.
added a new routine to remove an item from a json structure.
added a test case for it.
updating the comments
added some new APIs.
changed error condition in move routine.
Added scons file.  See Issue #26.
updated readme for scons.
minor change to readme.
wp no longer public.  add exceptions to update routine if value is not a scalar.  update documentation.
Added a new print routine where input is the filename.  Updating the documentation with some examples.
corrected minor typos.
minor comment.
working on documentation.
Update README.md
Some refactoring and commenting.
Note: to_real was changed to to_double.
minor refactoring.
minor change
minor change to guild script.
change version to 2.0.0
Update README.md