FIX #2786 Objectline_add template shows "0" for non-vat suppliers

FIX Close bug #2891 Category hooks do not work

FIX #3009: Better filtering to prevent SQL injection

FIX #2983 Load gravatar avatar images securely over HTTPS

FIX : If supplier invoice block linked element is display after other  block total HT amount is not reset to 0 and sum other block (like customer orders values)

Fix : supplier order clone was buggy if notes contains apostrophe

FIX #2957 : missing $langs object for trigger

block total HT amount is not reset to 0 and sum other block (like
customer orders values)

FIX top links menu have target attribute with wrong value

FIX when multicompany was enabled, isExistingObject check wrong

Merge branch 'fix_multientity_num_check' of github.com:atm-alexis/dolibarr into fix_multientity_num_check

Conflicts:
	htdocs/core/class/commonobject.class.php

Conflicts:
	htdocs/adherents/liste.php
	htdocs/comm/propal.php
	htdocs/compta/facture.php

FIX when multicompany was enabled, this function didn't check just on the good entity (problem when both company use same mask)

Fix email cc in selectlist on propal/bill

FIX button create payment hide if tax amount is less than 1

Fix : facturestats was not filtering on invoice type

FIX event for restricted user was restricted if company null

Properly escape untrusted data to prevent HTML injection.

First pass for #2857