Merge remote-tracking branch 'Upstream/develop' into develop-search

.travis.yml

htdocs/core/class/notify.class.php

htdocs/install/mysql/migration/3.5.0-3.6.0.sql

htdocs/install/mysql/migration/3.6.0-3.7.0.sql

htdocs/install/mysql/migration/repair.sql

htdocs/install/mysql/tables/llx_notify.sql

htdocs/install/upgrade.php

htdocs/install/upgrade2.php

htdocs/langs/es_ES/admin.lang

htdocs/langs/es_ES/holiday.lang

htdocs/langs/es_ES/mails.lang

htdocs/langs/es_ES/propal.lang

htdocs/societe/notify/card.php