Backport fix to solve warning problems.
Fix: duplicate info
Merge branch '3.5' of git@github.com:Dolibarr/dolibarr.git into 3.5
Fix: [ bug #1306 ] Fatal error when adding an external calendar
Fix: Solve pb of too many embedded tables
Fix: Missing lang loading
Fix: copy to clipboard does not work with jmobile
Fix: Bad translation
Fix: Avoid to get duplicate field
Merge branch '3.5' of git@github.com:Dolibarr/dolibarr.git into 3.5
Merge branch '3.5' of https://github.com/Dolibarr/dolibarr.git into 3.5
remove debug string