Add template for svdrphosts.conf

you can define additional hosts or subnets (default is to allow access
from localhost) in svdrphosts.conf by
creating a list variable vdr_svdrphosts - e.g. in host_vars/localhost
or in group_vars/all:

vdr_svdrphosts:
   - 192.168.0.0/24

also cleanup some of the structure in Manual.org and update Manual.html

roles/vdr/tasks/main.yml

@@ -94,6 +94,14 @@
     mode: 0644
     force: no
   when: vdr_channels_conf is not defined and vdr_channels_conf_url is defined
+
+- name: "vdr configuration | svdrphosts.conf"
+  template:
+    src: templates/svdrphosts.conf.j2
+    dest: '{{ vdr.confdir }}/svdrphosts.conf'
+    owner: '{{ vdr.user }}'
+    group: '{{ vdr.group }}'
+    mode: 0644
 - name: create directory for vdr.service systemd drop-in files
   file:
     dest: '{{ item }}'