dhtmlxscheduler: Wrong FSF address in license.txt

Non-technical Questions Licenses and Presale
#1

While packaging dhtmlxscheduler I notice that the address to Free Software Foundation in license.txt is wrong (they have moved). This causes some packaging noise. The correct license text can be found at gnu.org/licenses/old-licenses/gpl-2.0.txt

#2

Same problem for xhtmlXChart, in License_GPL.html

#3

And in dhtmlxGantt, file License_GPL.html

#4

Thanks for the info, we will update packages with correct GPL license text.