Remove datagrah step from authoring, functionality is replaced by table step.
https://github.com/WISE-Community/WISE-VLE/issues/238
Fixed a bug that was preventing steps from being previewed in the
authoring tool.
Merge branch 'master' of https://github.com/WISE-Community/WISE-VLE
Removed something I accidentally left in from testing.
Merge branch 'master' of https://github.com/WISE-Community/WISE-VLE into authoringv2
Implemented the new auto graded draw rubric. Also used feedback keys to handle feedback with the same scores. Added the ability to limit the number of times the student can receive feedback.
Fix for issue #239: Draw steps were not loading in authoring tool preview in Firefox 18

- Added alert notifying draw step authors when they select the pencil tool and the max number of snapshots was set above 10
- Removed unused authorview_svgdraw.js in vle/view/authoring/nodes/
Merge branch 'master' of https://github.com/WISE-Community/WISE-VLE
Merge branch 'master' of https://github.com/WISE-Community/WISE-VLE into authoringv2