Global objects are now shown in bold
Separate objects and groups in ObjectEditor and ChooseObjectDialog
Can drag&drop objects into groups
Add thumbnails in the ObjectListDialogsHelper
Add menu to delete objects from groups
Fix compilation failure on Travis CI
Some fixes
Hide the confirmation message when deleting an object from a group (in ObjectsEditor)
Remove the group dialog
Make some items not editable
Merge remote-tracking branch 'upstream/master' into objectEditorImprovements
Fix a bug when renaming the same object multiple times
Can create a group by dragging an object on "Groups" tree item
Fix a bug when refreshing the ObjectsEditor
Fix being unable to delete an object from a global group
Disable up/down buttons when a group is selected
Do not refresh the object list when set an object global
Move only the item when setting a group global
Various fixes
Some improvements to the objects list
Merge pull request #59 from victorlevasseur/objectEditorImprovements

Object editor improvements