Purpose now retrieved from session. New error support added for birthdate.
Purpose now retrieved from session. New error support added for birthdate.

commonwealth-of-puerto-rico/prgov_cap_webapp,commonwealth-of-puerto-rico/prgov_cap_webapp,mindware/prgov_cap_webapp,mindware/prgov_cap_webapp,commonwealth-of-puerto-rico/prgov_cap_webapp,mindware/prgov_cap_webapp