Code review for commit b88b9cc39d81e4fc8a044f831d3c85fc99dabcae
Leave object in JavaScript file for now.
Changed format of the student model so that it
better matches the format of the given model:  removed
subclass "selections" and merges selections.description and
givenNodeID into descriptionID.  Updated documentation, examples,
and Javascript code to match.

Set call format for public functions in js/pedagogical_module.js
Merge branch 'sachin' to change the JNLP url from devel to demo