Add control service "group" that return a container of controls
Use simple list instead of ordered dict
Merge pull request #61 from gbaty/control-group-service

Add control service "group" that return a container of controls
Fix drag and drop from project to code editor.
Drag and drop to dataflow not fixed
Merge pull request #65 from gbaty/fix-drag-and-drop-data

Fix drag and drop from project to code editor.
Add sync method to allow to sync world manually (emit world_sync)
Display only datatype in browser
(value was dangerous for example with huge numpy arrays)
Merge pull request #66 from gbaty/improve-world

World improvement
Add service qt_container that generate a GUI to edit a group of controls
qt_container: use **kwargs instead of style for future features
Merge pull request #67 from gbaty/edit-multiple-controls

Add service qt_container that generate a GUI to edit a group of controls
Add debug attribute to session.
If set to True, add some useful variable to shell namespace
Merge pull request #68 from gbaty/debug-mode

Add debug attribute to session