Updating Isle Royale problems to include preexisting nodes
Merge branch 'master' of https://github.com/bvds/LaitsV3
connection overlays for '-' and '/' code modified
Merge branch 'master' into pradeep
connection overlay addQuantity modified - tested for author mode
comments added for connection overlay code duplication
Fixed error in Author mode. Functions and Accumulators were causing errors when an expression was checked.
Renamed a test file.
Merge branch 'master' into pradeep

Conflicts:
	www/js/controller.js
	www/js/draw-model.js
Update wording from 'Author' to 'Group' in login.html and public-login.html.
Merge branch 'master' of https://github.com/bvds/LaitsV3
Move documentation around.
Merge branch 'master' into jingxian2
Code review for share bit.
  Format Bug for checkbox should be noted in Bugzilla
  and in css/dragoon.css
  Need to re-vamp problem saving and fetching as
   described in the changes to the documentation and in
   new Trello card.