Simplify Person box drop down menu functions

Remove all references to $personcount...

.. and handle knock-on effects
Merge branch 'MoreJSwork' of https://github.com/ddrury/webtrees into ddrury-MoreJSwork

Conflicts:
	includes/functions/functions_print.php
	includes/functions/functions_print_lists.php
	library/WT/Individual.php
Merge branch 'ddrury-MoreJSwork'