Prefer using ansible's systemd module

Signed-off-by: Jelle van der Waa <jelle@archlinux.org>

roles/quassel/handlers/main.yml

 ---
 
 - name: daemon reload
-  command: systemctl daemon-reload
+  systemd: daemon_reload=yes

roles/wkd/handlers/main.yml

 ---
 
 - name: daemon reload
-  command: systemctl daemon-reload
+  systemd: daemon_reload=yes
 
 - name: run wkd service
-  service: name=update-wkd.service state=started
+  systemd: name=update-wkd.service state=started