Use yaml syntax instead of key=value syntax consistently

fixes #62

roles/matrix-server/tasks/setup/setup_mxisd.yml

@@ -52,11 +52,15 @@
 #
 
 - name: Check existence of matrix-mxisd service
-  stat: path="/etc/systemd/system/matrix-mxisd.service"
+  stat:
+    path: "/etc/systemd/system/matrix-mxisd.service"
   register: matrix_mxisd_service_stat
 
 - name: Ensure matrix-mxisd is stopped
-  service: name=matrix-mxisd state=stopped daemon_reload=yes
+  service:
+    name: matrix-mxisd
+    state: stopped 
+    daemon_reload: yes
   register: stopping_result
   when: "not matrix_mxisd_enabled and matrix_mxisd_service_stat.stat.exists"
 
@@ -76,4 +80,4 @@
   docker_image:
     name: "{{ matrix_mxisd_docker_image }}"
     state: absent
-  when: "not matrix_mxisd_enabled"
+  when: "not matrix_mxisd_enabled"