When using Created_date & Modified_date for foreign languages, sometimes special
characters are shown in the dates.

French ex: 
jeudi 03 février 2011
jeudi 03 février 2011

By looking at the function.current_date.php (where this is working correctly), I
found it was using cms_htmlentities in stead of htmlentities.

When changing this in the function.current_date.php & function.modified_date.php
the issue is fixed.

In function.current_date.php:
replace:
	  return htmlentities(strftime($format, $time));;
with:
	  return cms_htmlentities(strftime($format, $time));

In function.modified_date.php
replace:
	  $str = htmlentities(strftime($format, $time));
with:
	  $str = cms_htmlentities(strftime($format, $time));

Greetings,
Manuel