fix few issues and add few features
Add new lang + follow up feature + remove amb code + change logic for import users and old orders + https issue
Remaining commit

	modified:   ajax.php
	modified:   ajaxCampaignSmsTest.php
	modified:   ajaxOrderSetting.php
	modified:   ajaxOrderTracking.php
	modified:   ajaxTestSmsShipped.php
	modified:   ajaxcall.php
	modified:   ajaxemailresult.php
	modified:   ajaxsmtpconfig.php
	modified:   ajaxsubscribeconfig.php
	modified:   ajaxtestsms.php
	modified:   config.php
	modified:   config.xml
	modified:   cron.php
	modified:   css/sendinblue.css
	deleted:    csv/sendinblue.csv
	modified:   fr.php
	modified:   js/sendinblue.js
        modified:   js/sendinblue.min.js
	modified:   mails/ca/sendinsmtp_conf.html
	modified:   mails/ca/sendinsmtp_conf.txt
	modified:   mails/en/sendinsms_notify.html
	modified:   mails/en/sendinsmtp_conf.html
	modified:   mails/es/sendinsmtp_conf.html
	modified:   mails/es/sendinsmtp_conf.txt
	modified:   mails/fr/sendinsms_notify.html
	modified:   mails/fr/sendinsmtp_conf.html
	modified:   mails/gl/sendinsmtp_conf.html
	modified:   mails/gl/sendinsmtp_conf.txt
	modified:   sendinblue.php
	modified:   smsnotifycron.php
	modified:   views/templates/admin/ajaxuserlist.tpl
	modified:   views/templates/admin/smssetting.tpl
	modified:   views/templates/admin/userlist.tpl
	modified:   views/templates/front/newsletter.tpl
	modified:   views/templates/front/sendinblue.tpl
Fix validator issue
	new file:   EmptyImportOldOrdersFile.php
	new file:   EmptyImportSubUsersFile.php
	modified:   ajaxOrderTracking.php
	modified:   es.php
	modified:   fr.php
	modified:   it.php
	modified:   pt.php
	modified:   sendinblue.php
	modified:   views/templates/admin/ajaxuserlist.tpl
	modified:   views/templates/admin/smssetting.tpl
Fix validator issue
	modified:   ajaxOrderTracking.php
	modified:   sendinblue.php
Fix validation issue
	modified:   EmptyImportOldOrdersFile.php
	modified:   EmptyImportSubUsersFile.php
	modified:   ajaxsubscribeconfig.php
	modified:   sendinblue.php
SendinBlue : Merge fixed
Merge branch 'elmahdi-master'
Merge branch 'master' of github.com:PrestaShop/PrestaShop-modules