Removed unnecessary requests made when loading the grading tool such as the extra project meta data request, the flag request, and the step translation file requests.
Fixed a problem with i18n files not being properly loaded.
Fixed a bug in crater when a student submitted their answer for the first time and they are supposed to rewrite their work, their previous work would not show up even though it is supposed to.
Fixed a problem with xMustHaveStatusYConstraint when using the isVisited statusType.
Got Epigame tag map constraints to disable when previewing a project with constraints disabled.
Added the ability to show previous work from a match sequence step.
Implemented the isCompleted() function for TableNode.
Made Netlogo steps special exportable.
Made Box2dModelNode special exportable.