General improvements

templates/etc-apache2-sites-available-owncloud

 <VirtualHost *:80>
-  Include /etc/apache2/conf-available/global-redirect.conf
+  Include /etc/apache2/{{ apache_conf_dir }}/global-redirect.conf
 
 	ServerAdmin {{apache_server_admin}}
 	ServerName  {{owncloud_domain}}
@@ -10,7 +10,7 @@
 	<Directory /var/www/owncloud/>
 		Options Indexes FollowSymLinks MultiViews
 		AllowOverride All
-		Include /etc/apache2/conf-available/global-deny.conf
+		Include /etc/apache2/{{ apache_conf_dir }}/global-deny.conf
 	</Directory>
 
 	ErrorLog ${APACHE_LOG_DIR}/error.log
@@ -23,7 +23,7 @@
 
 {% if owncloud_ssl %}
 <VirtualHost *:443>
-  Include /etc/apache2/conf-available/global-redirect.conf
+  Include /etc/apache2/{{ apache_conf_dir }}/global-redirect.conf
 
 	ServerAdmin {{apache_server_admin}}
 	ServerName  {{owncloud_domain}}
@@ -34,7 +34,7 @@
 	<Directory /var/www/owncloud/>
 		Options Indexes FollowSymLinks MultiViews
 		AllowOverride All
-		Include /etc/apache2/conf-available/global-deny.conf
+		Include /etc/apache2/{{ apache_conf_dir }}/global-deny.conf
 	</Directory>
 
 	ErrorLog ${APACHE_LOG_DIR}/ssl_error.log