New: Improved Opensurvey module: Description of survey use wysiwig

editor, More information shown on result tab, Renamed "survey" into
"poll" (better translation).

htdocs/core/lib/functions.lib.php

@@ -999,7 +999,7 @@ function dol_getdate($timestamp,$fast=false)
  *	@param	int			$year			Year
  *	@param	int			$gm				1=Input informations are GMT values, otherwise local to server TZ
  *	@param	int			$check			0=No check on parameters (Can use day 32, etc...)
- *	@return	int					Date as a timestamp, '' if error
+ *	@return	int							Date as a timestamp, '' if error
  * 	@see 								dol_print_date, dol_stringtotime, dol_getdate
  */
 function dol_mktime($hour,$minute,$second,$month,$day,$year,$gm=false,$check=1)