- Added new widget SketchTeaser
- Moved get_recent_sketches as static method in LMSSketch
- Added `models.py` to make it easy to import Course and Sketch class
- Updated the sketches template to use the SketchTeaser widget
- It shows the code like a textarea and the canvas will to the right
- It will take only the amount of height required for the code
- The existing LiveCodeEditor was renamed as LiveCodeEditorLarge and still
used or sketches