Modify dotfile regex so that it skips over paths including .php files.

conf/nginx.conf

@@ -54,8 +54,8 @@ server {
 		alias /var/lib/mailinabox/mozilla-autoconfig.xml;
 	}
 
-	# Disable viewing dotfiles (.htaccess, .svn, .git, etc.)
-	location ~ /\.(ht|svn|git|hg|bzr) {
+	# Disable viewing dotfiles (.htaccess, .svn, .git, etc.), but not under php-controlled pages
+	location ~ ^/(?!.*\.php).*/\.(ht|svn|git|bzr)$ {
 		log_not_found off;
 		access_log off;
 		deny all;