Merge branch '8.x-3.x' into 8.x-4.x

composer.json

css/salesforce.css

modules/salesforce_mapping/composer.json

modules/salesforce_mapping/salesforce_mapping.install

modules/salesforce_mapping/salesforce_mapping.routing.yml

...esforce_mapping/src/Controller/AutocompleteController.php

modules/salesforce_mapping/src/Entity/MappedObject.php

...lesforce_mapping/src/Form/SalesforceMappingFieldsForm.php

...sforce_mapping/src/Form/SalesforceMappingFormCrudBase.php

...orce_mapping/src/Plugin/SalesforceMappingField/Broken.php

.../src/Plugin/SalesforceMappingField/PropertiesExtended.php

...lesforce_mapping/src/SalesforceMappingFieldPluginBase.php

...rce_mapping/src/SalesforceMappingFieldPluginInterface.php

modules/salesforce_soap/src/Soap/SoapClient.php

src/SelectQuery.php

src/SelectQueryBase.php

src/SelectQueryRaw.php