title: htaccess rules hit 404 when using numbers in url
body: <p>I've following htaccess to generate permalinks for my app:</p>
  
  <pre><code>6   #Permalinks
  7   RewriteEngine on
  8   &lt;IfModule mod_rewrite.c&gt;
  9   RewriteEngine On
  10  #catch potential subpages first
  11  RewriteRule ^([a-z-]+)/([a-z-]+)/?$ index.php?page=$1&amp;subpage=$2 [L,NC,QSA]
  12  #
  13  RewriteRule ^([a-z-]+)/?$ index.php?page=$1 [L,NC,QSA]
  14  &lt;/IfModule&gt;
  </code></pre>
  
  <p>Is correct regexp: <code>[0-9a-z-]</code> ?</p>