conditional_fields 4.0.0-alpha1

Changes since 8.x-1.0-alpha10:

• #3192790 by mparker17: Add paragraphs to test_dependencies in .info.yml (#)
• #3206849 by mparker17: Make ConditionalFieldsFormHelper testable (#)
• Add a ConditionalFieldTestBase::$defaultTheme. (#)
• Set the default theme in tests to stark. (#)
• Fix easy coding standards errors; and unused variables. (#)
• Remove unused .travis.yml. (#)
• Remove unused sonar-project.properties. (#)
• Remove composer.json in favor of Drupal.org's composer facacde. (#)
• #3191984 by Liam Morland, jplana, easp: Notice: Trying to access array offset on value of type null (#)
• #2984548 by bogdan.racz, radubutco: Notice: Undefined index: #language in conditional_fields_get_selector() (#)
• #3211957 by pjbaert: Configure option is missing on extends module page (#)