Merge pull request #38 from bojanz/update-for-core

.travis.yml

composer.json

entity.info.yml

entity.module

entity.services.yml

src/Controller/EntityCreateController.php

src/Controller/RevisionController.php

src/Controller/RevisionOverviewController.php

src/Entity/EntityDescriptionInterface.php

src/EntityKeysFieldsTrait.php

src/Form/RevisionRevertForm.php

src/ParamConverter/EntityRevisionParamConverter.php

src/Plugin/views/field/RenderedEntity.php

src/Revision/EntityRevisionLogInterface.php

src/Revision/EntityRevisionLogTrait.php

src/Revision/RevisionableContentEntityBase.php

src/RouteEnhancer/EntityRevisionRouteEnhancer.php

src/Routing/AdminCreateHtmlRouteProvider.php

src/Routing/CreateHtmlRouteProvider.php

src/Routing/RevisionRouteProvider.php