drop php 5.2 from travis, no longer present in travis
drop php 5.2 from travis, no longer present in travis

Olvikolvi/smarty-gettext,smarty-gettext/smarty-gettext,fenghuilee/smarty-gettext,fenghuilee/smarty-gettext,smarty-gettext/smarty-gettext,Olvikolvi/smarty-gettext