fix umurmur deployment and remove ispublic flag

defaults/main.yml

@@ -85,6 +85,7 @@ murmur_ice_message_size_max: 65536
 umurmur_enabled: yes
 umurmur_domain: "{{ mumble_web_domain }}"
 umurmur_max_bandwidth: 48000
+umurmur_max_users: 100
 umurmur_server_password: ""
 umurmur_channels:
 - name: Root
@@ -99,6 +100,8 @@ umurmur_channels:
   description: Silent channel
   silent: yes
   position: 1
+umurmur_default_channel: Welcome
+umurmur_welcome_text: "Welcome on the {{ inventory_hostname }} Mumble server!"
 umurmur_channel_links:
 - source: "{{ umurmur_default_channel }}"
   destinations: >-
@@ -112,5 +115,4 @@ umurmur_ssl_group: "{{ acme_ssl_group }}"
 umurmur_certificate: "{{ acme_certs_dir }}/{{ umurmur_domain }}.d/{{ acme_enabled | ternary('fullchain', 'cert') }}.pem"
 umurmur_private_key: "{{ acme_keys_dir }}/{{ umurmur_domain }}.pem"
 umurmur_version: master
-umurmur_ispublic: yes
 umurmur_port: 64738