New PDF printing method due to ajax

-bypass ajax: open new window (target=_blank)
-wkhtmltopdf bug: reads mobile css rules => reset
-BackPrompt function does not need to go back
Deactivate headers repeat in PDF printing

-also commented code about paging results, never seen in use...
Bugfix: mass drop students did not work

-update END_DATE in SCHEDULE table
-delete SCHEDULE record if END_DATE<START_DATE
-replace BackPrompt with error message
Replace opener frame reload with ajax reload
wkhtmltopdf reset: stackable tables
Use same Tabs style for PDF
Add popups to white list

-add choose_course modfunc
-add #body div to popups so ajaxLink JS function can work
jquery.form.js commit bug
jquery.form.js commit bug (2)
Bugfix Illegal offset type
Move info_apd config option

-delete $info_options_x table
Remove $relation_options
Remove config variables for include/Address.inc.php

-delete Students/config.inc.php
-remove references to $city_options, $state_options, $zip_options
-add maxlength=100 to options input field
Bugfix delete impossible

-move can_use block up
Replace history back with ajaxPostForm
Remove $relation_options (2)