Added basic tests for ellipse and polygon visual, method to retrieve file from test repo
Added init file, fixed indentation error
RegularPolygon test
Refactored image testing code
Added minor fix to PolygonVisual
Refactored visuals testing into TestingCanvas
Travis changes and requires_scipy decorator
Merged tests, moved TestingCanvas into vispy.testing
Change apt-get scipy to pip install
Added version to scipy decorator
Changed assert_array_equal to assert_array_almost_equal
Assert min_version is string
Replaced assert_array_equal with custom routine
Failed test images pushed to repo
Allow exception to be raised
Failed images saved into commit-id folders
Fixed flake issue
Relaxed constraint in assert_image_equal
Merge pull request #327 from mssurajkaiga/visual-testing

WIP: Visuals tests