Update modProjet.class.php

bad incrementation
Fix: Action event SHIPPING_VALIDATE is not implemented
Fix: The customer code was set to uppercase when using numbering module
leopard. We must keep data safe of any change.
Fix: [ bug #1254 ] Error when using "Enter" on qty input box of a
product
Add state_id in contact for individual third party
Fixed bug #1123: Paid deposit invoices are always shown as partially paid when fully paid
Corrected indentation to tabs
Corrected project contact types translation
Added SpecialCode translation key
Translated export filters
Fixed translations of project export wizard
Updated user export labels
Merge pull request #1431 from Pfontaine/fix/state_id_on_contact

Add state_id in contact for individual third party
Merge pull request #1435 from marcosgdf/export-translations

Corrected export translations
Fix: sql error with postgres when creating extrafield with an upper cas
character. code for new fields must be always lowercase.
New: Add message to explain how to use the page. Make things more clear
for user.
Merge branch '3.5' of https://github.com/Dolibarr/dolibarr.git into 3.5
Merge branch 'develop' of https://github.com/Dolibarr/dolibarr.git into develop
Removed some code specific to databases and use instead correct abstract
method of drivers.
New: Add form search customer order on commercial main page.