RedHat: Made AddDefaultCharset Directive configurable (#147)

* RedHat: Made AddDefaultCharset Directive configurable

* Added description of apache:lookup:default_charset to pillar.example, sane default equals former hardcoded UTF-8

apache/files/RedHat/apache-2.4.config.jinja

@@ -345,7 +345,7 @@ LogLevel warn
 # in HTML content to override this choice, comment out this
 # directive:
 #
-AddDefaultCharset UTF-8
+AddDefaultCharset {{ apache.default_charset }}
 
 <IfModule mime_magic_module>
     #

apache/map.jinja

@@ -40,6 +40,7 @@
         'logdir': '/var/log/httpd',
         'logrotatedir': '/etc/logrotate.d/httpd',
         'wwwdir': '/var/www',
+        'default_charset': 'UTF-8',
         'use_require': False,
     },
     'Suse': {

pillar.example

@@ -18,6 +18,8 @@ apache:
     # ``apache.mod_wsgi`` formula additional configuration:
     mod_wsgi: mod_wsgi
 
+    # Default value for AddDefaultCharset in RedHat configuration
+    default_charset: 'UTF-8'
 
   global:
     # global apache directives