Create Editor class with multiple buffers
Add test for Editor
Add Cursor class (debut)
Add Cursor test (begin)
Add moar tests #editor
Refactoring Editor class
Add an EventManager to track every event made
Add a controller behavior to Editor on cursor events
Style & Preparing write method for Editor
Merge pull request #5 from Matthieu-Riou/editor-firstStep

Implement first pieces of Editor