Language adjustments

lang/de/tool_lifecycle.php

lang/en/tool_lifecycle.php

step/createbackup/lang/de/lifecyclestep_createbackup.php

step/deletecourse/lang/de/lifecyclestep_deletecourse.php

step/duplicate/lang/de/lifecyclestep_duplicate.php

step/email/lang/de/lifecyclestep_email.php

trigger/categories/lang/de/lifecycletrigger_categories.php

trigger/manual/lang/de/lifecycletrigger_manual.php

trigger/manual/lang/en/lifecycletrigger_manual.php

trigger/sitecourse/lang/de/lifecycletrigger_sitecourse.php

...er/specificdate/lang/de/lifecycletrigger_specificdate.php

...tartdatedelay/lang/de/lifecycletrigger_startdatedelay.php