[Dolibarr-dev] Backward compatibility old php version

[Gustavo Novaro]

Hi everybody,
When coding in dolibarr i see in all files are coding with old php 
rules, i promote php 5 and php 4 don't have official support, don't 
promote old practice like register globals, old php object model.

all classes are codded like this

class Skeleton_class
{
    var $db;                            //!< To store db handler
    var $error;                            //!< To return error code 
(or message)
    var $errors=array();                //!< To return several error 
codes (or messages)
    //var $element='skeleton';            //!< Id that identify managed 
objects
    //var $table_element='skeleton';    //!< Name of table without 
prefix where object is stored

    var $id;
    var $prop1;
    var $prop2;
...
        function initAsSpecimen()
        {

        }
}
?>

please replace all var in properties for public, private and protected 
and all methods we have accesors
public function...

All classes or pure php files should not have the closing tag for php 
"?>", since the compiler will not interpret it and if they have any 
newline at the end of the interrupt after the execution of scripts, it 
is good practice to use this promoting the project mediawiki.