Fix `bind.address` parameter

`bind.address` parameter is missing `server.` prefix in some conf files which
causes error when rendering template with other bind address than
`0.0.0.0` or `127.0.0.1`.
diff --git a/postgresql/files/8.4/postgresql.conf.Debian b/postgresql/files/8.4/postgresql.conf.Debian
index baef22a..426b209 100644
--- a/postgresql/files/8.4/postgresql.conf.Debian
+++ b/postgresql/files/8.4/postgresql.conf.Debian
@@ -59,7 +59,7 @@
 {%- if server.bind.address == '0.0.0.0' %}
 listen_addresses = '*'
 {%- else %}
-listen_addresses = 'localhost'{% if server.bind.address != '127.0.0.1' %}, '{{ bind.address }}'{% endif %}
+listen_addresses = 'localhost'{% if server.bind.address != '127.0.0.1' %}, '{{ server.bind.address }}'{% endif %}
 {%- endif %}
 port = {{ server.bind.get('port', '5432') }}
 max_connections = 100
diff --git a/postgresql/files/9.1/postgresql.conf.Debian b/postgresql/files/9.1/postgresql.conf.Debian
index 02f65c9..02d8864 100644
--- a/postgresql/files/9.1/postgresql.conf.Debian
+++ b/postgresql/files/9.1/postgresql.conf.Debian
@@ -59,7 +59,7 @@
 {%- if server.bind.address == '0.0.0.0' %}
 listen_addresses = '*'
 {%- else %}
-listen_addresses = 'localhost'{% if server.bind.address != '127.0.0.1' %}, '{{ bind.address }}'{% endif %}
+listen_addresses = 'localhost'{% if server.bind.address != '127.0.0.1' %}, '{{ server.bind.address }}'{% endif %}
 {%- endif %}
 port = {{ server.bind.get('port', '5432') }}
 max_connections = 100
diff --git a/postgresql/files/9.3/postgresql.conf.Debian b/postgresql/files/9.3/postgresql.conf.Debian
index 45eb96c..69b7d25 100644
--- a/postgresql/files/9.3/postgresql.conf.Debian
+++ b/postgresql/files/9.3/postgresql.conf.Debian
@@ -60,7 +60,7 @@
 {%- if server.bind.address == '0.0.0.0' %}
 listen_addresses = '*'
 {%- else %}
-listen_addresses = 'localhost'{% if server.bind.address != '127.0.0.1' %}, '{{ bind.address }}'{% endif %}
+listen_addresses = 'localhost'{% if server.bind.address != '127.0.0.1' %}, '{{ server.bind.address }}'{% endif %}
 {%- endif %}
 port = {{ server.bind.get('port', '5432') }}
 max_connections = 100			# (change requires restart)
diff --git a/postgresql/files/9.5/postgresql.conf.Debian b/postgresql/files/9.5/postgresql.conf.Debian
index 1dee134..231ea93 100644
--- a/postgresql/files/9.5/postgresql.conf.Debian
+++ b/postgresql/files/9.5/postgresql.conf.Debian
@@ -59,7 +59,7 @@
 {%- if server.bind.address == '0.0.0.0' %}
 listen_addresses = '*'
 {%- else %}
-listen_addresses = 'localhost'{% if server.bind.address != '127.0.0.1' %}, '{{ bind.address }}'{% endif %}
+listen_addresses = 'localhost'{% if server.bind.address != '127.0.0.1' %}, '{{ server.bind.address }}'{% endif %}
 {%- endif %}
 port = {{ server.bind.get('port', '5432') }}
 #listen_addresses = 'localhost'		# what IP address(es) to listen on;