[Laszlo-dev] Docs for attribute setters

[Philip Romanik]

Hi Lou,

The wiki page, 
http://wiki.openlaszlo.org/Runtime_Differences#Attribute_setters_defined_with_.3Csetter.2F.3E, 
is updated with details about the attribute setters. This contains 
Tucker's notes on the subject, as well as some additional examples 
and details I added. It also describes the convert_setters.pl script 
to upgrade applications.

Thanks!

Phil