add a test for issue #220
fix issue #220
update change log
no need for scipy
Update cmap_image_plot.py
Merge pull request #221 from enthought/fix-220

Fix cmap image plot not refreshing when the color mapper updates
Merge branch 'master' into fix/stretch-data-false

# Via Ioannis Tziakos (1) and Jonathan Rocher (1)
* master:
  Update cmap_image_plot.py
  no need for scipy
  update change log
  fix issue #220
  add a test for issue #220

Conflicts:
	CHANGES.txt