Drop support for text-alignment.
Merge pull request #85 from cs-shadow/8.x-1.x

Drop support for text-alignment.
Updated for https://www.drupal.org/node/2310411.
Updated Core checkout to use 8.0.x instead of 8.x.
Merge branch '8.x-1.x' into 2316481-form-state-object
Updated randomName() is now randomMachineName().
Replaced more form state arrays with propre objects in tests.
Updated for https://www.drupal.org/node/2315237.
Fixed one missing FormState conversion.
by slashrsm: Fix 2nd step not displaying correctly.
Renamed submission handlers to be a bit more descriptive.
Attempt to disable phpcs for now. Does this fix Travis?
Merge pull request #87 from drupal-media/2316481-form-state-object

Updated for https://www.drupal.org/node/2310411.
Fix travis failures
Use getButtonImage method to get url of the button icon
Merge branch '8.x-1.x' into entity-embed-config-entity