Re-add ansistrano and circle files

.circleci/config.yml

@@ -0,0 +1,45 @@
+version: 2
+
+jobs:
+  build:
+    docker:
+      - image: circleci/php:7.1
+    steps:
+      - checkout
+      - restore_cache:
+          keys:
+            - v1-dependencies-{{ checksum "composer.json" }}
+            - v1-dependencies-
+      - run: composer install -n --prefer-dist
+      - save_cache:
+          paths:
+            - ./vendor
+          key: v1-dependencies-{{ checksum "composer.json" }}
+
+  deploy:
+    docker:
+      - image: ansible/ansible:ubuntu1604
+        environment:
+          ANSIBLE_HOST_KEY_CHECKING: no
+    steps:
+      - run:
+          name: Install system packages.
+          command: pip install --upgrade pip && pip install ansible
+      - checkout
+      - restore_cache:
+          key: v1-{{ .Branch }}-{{ checksum "./ansible/requirements.yml" }}
+      - run: ansible-galaxy install -r ansible/requirements.yml
+      - save_cache:
+          key: v1-{{ .Branch }}-{{ checksum "./ansible/requirements.yml" }}
+          paths:
+            - '/root/.ansible/roles'
+      - run: ansible-playbook ansible/deploy.yml -i ansible/hosts -e 'git_branch=master' -u opdavies --become
+
+workflows:
+  version: 2
+  build_test_and_deploy:
+    jobs:
+      - build
+      - deploy:
+          requires:
+            - build