Improving NetLogo support in preparation for the looming WISE data types
support

Also, cleaning up a lot of silly cruft
Added i18n support for NoteNode. Notes had to be handled in a special way because it was rendering inside $("#notepanel"). Internationalized items in notes.html along the way.
Cargraph hint bugfix

Hints were comparing strings instead of floats to make determinations of
accuracy, that's bad.  Also, grapher wasn't using an icon.
new spanish translations for the note step
We now set export columns when authoring draw steps.
Merge branch 'master' of https://github.com/WISE-Community/WISE-VLE
Added export columns to the open response step. Also saved the CRater score into the node state now so that it can be displayed in the excel export.
Collecting click-stream data

When student clicks on graph to view over time the data is collected in
the state.
Collect "pause" "play" "stop" data

Now gathers when students press pause, stop and play for data
Fixed a problem with not being able to step preview a questionnaire step in the authoring tool.
Merge branch 'master' of https://github.com/WISE-Community/WISE-VLE
new vle and theme translations by cristiano
added CarGraphNode to nodes_with_large_student_work. request by JonV
added spanish, japanese, and dutch theme support to vle.
Remove text area if not needed in sensor

Previously the text area for responses would show even if the author
specified "0" lines, now this is fixed, hides on 0.  Slight change to
grapher for robustness (parsing a string into int before eval)
Added starmap icons for pilot medals, warp medals, and warp steps.
Removed a console.log() call in EpigameNode.js.
Merge branch 'master' of https://github.com/WISE-Community/WISE-VLE
turned off logging of sql statements
Fixed bugs in draw steps: 1) line tool wouldn't hide if disabled in authoring tool; 2) color selectors wouldn't hide if all drawing tools were disabled