Fix SQL error on order stats

FIX : same page added several times on mergepropal option

FIX : SQL error function on getAvailableDiscounts function, on bill c…

Fix next month or next year in opensurvey

http://www.dolibarr.fr/forum/527-bugs-sur-la-version-stable-courante/55209-bug-calendrier-opensurvey-v3-9

Fix email template edition

FIX services dispatch on supplier order only if STOCK_SUPPORTS_SERVICES

Fix: doublon (merge problem?)

Fix: Expensereport not compatible with multicompany

FIX 3.8 hook on group card called but not initialized

Fix update supplier ref on supplier invoice

FIX : can't fetch by siret or siren because of first "if"

Fix contract line creation

FIX: Accountancy - 3.8 - Chart of accounts are limited on only one country

Conflicts:
	htdocs/commande/class/commande.class.php
	htdocs/expedition/class/expedition.class.php
	htdocs/index.php

FIX: end of select when no fournprice

FIX search on date into supplier invoice list 

FIX: Not filtering correctly when come from dashboard