*some fixes

* fixed installing samples when for example Rook Sample already exist and other samples not
* fixed some mysql error when character you trying to create already exist
* fixed signature fonts finding path
* removed DEFAULT '' for TEXT field. It didn't worked under some systems like MAC OS X.
* moved news adding at installation from schema.sql to finish.php
* removed some unused cities field from myaac_spells table
* some optimizations

system/libs/twig/Cache/FilesystemCache.php

@@ -0,0 +1,11 @@
+<?php
+
+namespace Twig\Cache;
+
+class_exists('Twig_Cache_Filesystem');
+
+if (\false) {
+    class FilesystemCache extends \Twig_Cache_Filesystem
+    {
+    }
+}