In some environments, "application/x-font-ttf" is not defined (because it's not an official mime type).
Fix class name for ImageConfig tests.
Separating ImageConfig tests for GD.
Removing unused code in tests.
Separating Image tests for GD.
Separating ImageConfig's font point calculation to another class. This calculation depends on GD, not the rest of the tests.
Adding Imagick version form ImageFaker/Image and ImageTest.
Adding Imagick version for ImageConfig's font point tests.
Adding Gmagick version for tests.
Improve composer.json
Improve travis config (copy from Imagine's repo).