ZP-928 Add default apache configurations to config directory.

Released under the Affero GNU General Public License (AGPL) version 3.

config/apache2/z-push-autodiscover.conf

+# Z-Push AutoDiscover - ActiveSync over-the-air - default Apache configuration
+<IfModule mod_alias.c>
+    AliasMatch (?i)/Autodiscover/Autodiscover.xml "/usr/share/z-push/autodiscover/autodiscover.php"
+</IfModule>

config/apache2/z-push.conf

+# Z-Push - ActiveSync over-the-air - default Apache configuration
+<IfModule mod_alias.c>
+    Alias /Microsoft-Server-ActiveSync /usr/share/z-push/index.php
+</IfModule>
+
+<Directory /usr/share/z-push>
+    # Don't list a directory index, follow symlinks (maybe state dir is somewhere linked)
+    DirectoryIndex index.php
+    Options -Indexes +FollowSymLinks
+
+    # Z-push requirements
+    php_value magic_quotes_gpc off
+    php_value magic_quotes_runtime off
+    php_value register_globals off
+    php_value short_open_tag on
+
+    # Optional
+    # php_value display_errors off
+
+    # Setting memory limit higher (larger attachments)
+    php_value memory_limit 128M
+    
+    # Security
+    # Don't allow .htaccess Overrides, disallow access to files
+    AllowOverride none
+    <IfModule !mod_authz_core.c>
+        Order allow,deny
+        allow from all
+    </IfModule>
+      <IfModule mod_authz_core.c>
+        Require all granted
+    </IfModule> 
+    
+    <Files "debug.txt">
+      <IfModule !mod_authz_core.c>
+        Deny from All
+      </IfModule>
+      <IfModule mod_authz_core.c>
+        Require all denied
+      </IfModule>
+    </Files>
+    <Files "config.php">
+      <IfModule !mod_authz_core.c>
+        Deny from All
+      </IfModule>
+      <IfModule mod_authz_core.c>
+        Require all denied
+      </IfModule>
+    </Files>
+</Directory>
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