Update codesniffer to remove travis errors.
Fixed: bad place for the ajaxcombo.
Fixed: Missing test
Fixed: bad conditions
Merge branch 'develop' of git@github.com:Dolibarr/dolibarr.git into develop
Merge remote-tracking branch 'origin/3.7' into develop

Conflicts:
	htdocs/core/class/html.form.class.php
	htdocs/core/lib/ajax.lib.php