Merge pull request #87 from hannu/implement-common-class

Add commonClass option that is added to every preview block
Fix fullscreen to work also with first level items
Fixed double inclusion of Angular dependencies
Merge pull request #90 from anttisalo/componentLoadingFix

Fixed double inclusion of Angular dependencies
Find sass variables with config parameter instead of magic file. Fix socket.io target paths
Merge pull request #89 from varya/features/fullscreen-4-first-level

Fix fullscreen to work also with first level items
Merge pull request #91 from hannu/fix-socketio-paths

Find sass variables with config parameter instead of magic file. Fix socket.io target paths
Use fork of conventional commits repository
Task to chow changelog
Use "conventional changelog" from the fixed branch
Instructions on how to release
CHANGELOG.md, empty yet