Add bzflag unit file, and fixed znc unit file deployment and comments

roles/shell/tasks/znc.yml

@@ -1,4 +1,4 @@
-# Install our baseline packages for all machines, irrespective of what role they might have
+# Configure znc 
 ---
 - name: Create home dirs for znc 
   file:
@@ -17,18 +17,12 @@
     group: root
     mode: 0770
 
-- name: Install crontab target
+- name: Install znc target
   copy:
     dest: /etc/systemd/system/znc.service
     content: |
       [Install]
       WantedBy=multi-user.target
-      [Unit]
-      Description=Simulates cron, limited to /etc/cron.*
-      Requires=crontab@hourly.timer
-      Requires=crontab@daily.timer
-      Requires=crontab@weekly.timer
-      Requires=crontab@monthly.timer
 
       [Unit]
       Description=ZNC, an advanced IRC bouncer