Expose resemble's options in config file and don't scaleToSameSize by default #176
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We should not scale the images to the same size when comparing them because, by definition, if they have different sizes, they are not equal. Scaling introduces distortions that make it difficult to identify the actual problem.
Also, in this merge request, we exposed Resemble's options in the RobotEyes config file. This way, the user can change the parameters used to compare the images according to their needs. We needed this because some images were not passing the integration tests due to small differences caused by the browser's anti-aliasing.