add test for issue #179
fix issue #179
Update test_tuple_editor.py
fix indentation
Update CHANGES.txt
Update CHANGES.txt
Merge branch 'master' into fix-feadback-changes-in-TupleEditor

# By Robert Kern
# Via Corran Webster (1) and Robert Kern (1)
* master:
  BUG: Respect the TableEditor.show_row_labels flag.

Conflicts:
	CHANGES.txt
Merge pull request #180 from enthought/fix-feadback-changes-in-TupleEditor

Fix feadback event changes in TupleEditor