Commit a85a44dde0c03f2ac0b336318208c30cd85c8111

Add support for file:/// URLs in Textile.

Thanks to Maximilian Mehnert.
  
249249 $this->pnct = '[\!"#\$%&\'()\*\+,\-\./:;<=>\?@\[\\\]\^_`{\|}\~]';
250250 $this->urlch = '[\w"$\-_.+!*\'(),";\/?:@=&%#{}|\\^~\[\]`]';
251251
252 $this->url_schemes = array('http','https','ftp','mailto');
252 $this->url_schemes = array('http','https','ftp','mailto','file');
253253
254254 $this->btag = array('bq', 'bc', 'notextile', 'pre', 'h[1-6]', 'fn\d+', 'p');
255255