Added legal header to all features and step definitions files

spec/test/features/control/append/error_malformed.feature

@@ -1,3 +1,18 @@
+#
+# Copyright 2019 Banco Bilbao Vizcaya Argentaria, S.A.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
 Feature: Kapow! server reject append requests with malformed JSON bodies.
   Kapow! server will reject to append a route when
   it receives a malformed json document in the

spec/test/features/control/append/error_unprocessable.feature

@@ -1,3 +1,18 @@
+#
+# Copyright 2019 Banco Bilbao Vizcaya Argentaria, S.A.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
 Feature: Kapow! server rejects requests with semantic errors.
   Kapow! server will refuse to append routes when
   it receives a valid json document not conforming

spec/test/features/control/append/success.feature

@@ -1,3 +1,18 @@
+#
+# Copyright 2019 Banco Bilbao Vizcaya Argentaria, S.A.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
 Feature: Append new routes in Kapow! server.
   Appending routes allows users to configure the server. New
   routes are added at the end of the list of existing routes.