fix
Merge branch '3.6' of git@github.com:Dolibarr/dolibarr.git into 3.6
Merge branch '3.6' of git@github.com:Dolibarr/dolibarr.git into 3.6

Conflicts:
	ChangeLog
Little fix
Fixed forgotten rename
Fixed missing class include for task duplication
Merge pull request #1869 from FHenry/3.6

Extrafield feature select from table should try to translate multiple column when not needed
Merge pull request #1871 from KreizIT/3.6

Little fix
Merge pull request #1873 from GPCsolutions/projectfixes

Projectfixes
Merge remote-tracking branch 'origin/3.6' into develop