Fixed: Bad function/picto for information messages (not a star)
Fix a very old bug of conflicth into decrease stock when using point of
sale, not compatible with option defined into stock module.
Add info to help understand debug
Fixed: Protection to lock language setup in demo mode was not working
Fixed: Module for target emailing must not be visible when modules is
disabled.
Merge branch '3.7' of git@github.com:Dolibarr/dolibarr.git into 3.7
Try to find a solution to fight against spam sending from dolibarr when
phpmail is set.
No time to find a better solution so i add just a hidden option to
disable phpmail function.
Merge branch '3.7' of git@github.com:Dolibarr/dolibarr.git into 3.7
Fix: Stock decrease from POS
Fixed: Ton of old bugs when debugging POS.
Add warning
Fixed: Use constant to hide a feature that will probably be broken. Also
it is a superfluous feature.
Better translation
Merge remote-tracking branch 'origin/3.7' into develop

Conflicts:
	htdocs/product/stock/card.php