Add a show_toolbar flag to MayaviCanvas.
Add a basic coverage unit test for MayaviCanvas.
Add mayavi to dev_requirements.txt
rewrite MayaviCanvas as a TraitsView subclass
add a pushbutton to toggle the toolbar visibility
use the released version of mayavi
add python vtk to travis ci
pep8 and pyflakes
Merge pull request #35 from enthought/mayavi-rework

Mayavi canvas rework
Merge pull request #31 from enthought/feature/mayavi-toolbar-visibility

Add a flag for toolbar visibility in MayaviCanvas