Work in progress !

First step to build REST API into Dolibarr

Fix #2632

Prevented the input of supplier invoices lines from working

FIX #2718

instances
-Update changelog for 3.7.1

Conflicts:
	ChangeLog
	htdocs/install/mysql/migration/3.6.0-3.7.0.sql

instances
-Update changelog for 3.7.1

creation/update.

black on white (better contrast).
Fix editfieldval for date.

private information)

External libraries resides in the include directory

Improved environment informations and presentation