FIX #4242 Allow disabling dashes in documents

3.7 specific fix since document files have moved

Fix: Accountancy Add an empty field for list of parent account - This value can be null

Fix: PHP 7 - Fatal error: 'break' not in the 'loop' or 'switch' context

Conflicts:
	htdocs/product/class/product.class.php

Fix #3930 Removed executable bit

These files doesn't contain executable code and may pose a security
threat.

FIX: Not delete a product when have customer price

Conflicts:
	dev/codesniffer/ruleset.xml

Conflicts:
	htdocs/langs/en_US/users.lang
	htdocs/product/stock/class/mouvementstock.class.php

FIX : Use "WHERE true" instead of "WHERE 1" #4132

Fix : accountancy code on finance journal is not a constant

Fix: Bug when idprof is mandatory on thrid creation and we use multicompany

Fix #4069 Accountancy - button "export" don't work on finance journal

FIX #4097 Public holiday calculation

multicompany

FIX #4081 Added missing translation

The last day was ommitted and never parsed. If this day was a
saturday, sunday or public holiday day, it was not computed.

FIX #3734 Do not show empty links of deleted source objects in stock movement list

FIX export with category contact extrafields

FIX Nb of tasks and percent progress in box project

FIX Not use localtaxes when invoice some orders

FIX product link in project box