Add reverse compatability for Editor creation

src/editor-view.coffee

@@ -86,7 +86,8 @@ class EditorView extends View
     if editorOrOptions instanceof Editor
       editor = editorOrOptions
     else
-      {editor, @mini} = editorOrOptions ? {}
+      {editor, editSession, @mini} = editorOrOptions ? {}
+      editor ?= editSession # TODO: Remove this line after packages have updated their api to use Editor and EditorView
 
     @id = EditorView.nextEditorId++
     @lineCache = []