typo: sail_databse->vle_database in vle.properties
Changed the submit popup when auto graded drawing is not set to display
the score or feedback to the student.
Merge branch 'master' of https://github.com/WISE-Community/WISE-VLE
No more living dangerously.
No more living dangerously continued. Added DBSchemaExporter to export db schema and also added initial vle-createtables.sql file.
complete revision - part 2

almost there...
complete revision - part 3

A little work on the display objects and display depth
Added a null check for a function. Somehow a student managed to save a
brainstormstate node state for an OutsideUrlNode step which caused a
null pointer because OutsideUrlNode does not have the function
parseDataJSONObj().
Merge branch 'master' of https://github.com/WISE-Community/WISE-VLE
Fixed a typo.
box2d contact list

Now calculates how much mass is on a pan using contacts
Fixed a problem with ideas in explanation builder becoming undraggable
after they have been placed in the right drop area.
Merge branch 'master' of https://github.com/WISE-Community/WISE-VLE
Merge branch 'master' of https://github.com/WISE-Community/WISE-VLE into svgedit-2.6