- added community.bundle.less file to create css bundle
- removed the obsolete build.json in favor of new build system
- updated the paths in the books
- removed the imported urls from css files (the new build system doesn't support that)
- removed obsolete lms.css
- added sections to the lesson to handle multiple sesions like examples and exercises
- added livecode integration to lesson pages
- autosave and submiting the answers is not done yet
- Added build setup to include styles.less in building community.css
- The old styles are still in style.css. Those styles will be slowly moved to style.less.
- Move all the new styles to style.less
- 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
