Use GuiTestAssitant to possibly remedy CtfEditor test failures.
Set the ETS toolkit before importing from enable
Maybe this will work?
Try using EnamlTestAssistant to get a real window...
Use .travis.yml to set the ETS_TOOLKIT
Merge branch 'master' into fix/ctf-test-failures
Merge branch 'master' into fix/ctf-test-failures
Merge pull request #7 from enthought/fix/ctf-test-failures

Fix unit test failures on TravisCI