Update company.lib.php
add contact tabs on company

appair only if MAIN_SUPPORT_CONTACT_TYPE_FOR_THIRDPARTIES is enabled
display on tabs adherent list of company
Update societecontact.php
Update societecontact.php
Update societecontact.php
change option name

replace
MAIN_SUPPORT_CONTACT_TYPE_FOR_THIRDPARTIES
by
MAIN_SUPPORT_SHARED_CONTACT_BETWEEN_THIRDPARTIES
Qual: Remove method SetBilled that is a duplicate of setStatus. 
Fix: Better management of option SendInterventionRef.
Fix: Translation
Fix: [ bug #1547 ] Untranslated Paiementfourn.class.php error messages
Merge pull request #1803 from defrance69/patch-15

add company contact tabs