civicrm-47: Update to 4.7.19 release

civicrm/CRM/ACL/DAO/ACL.php

civicrm/CRM/ACL/DAO/Cache.php

civicrm/CRM/ACL/DAO/EntityRole.php

civicrm/CRM/Activity/BAO/Activity.php

civicrm/CRM/Activity/DAO/Activity.php

civicrm/CRM/Activity/DAO/ActivityContact.php

civicrm/CRM/Activity/Form/Activity.php

civicrm/CRM/Activity/Selector/Activity.php

civicrm/CRM/Admin/Form/Options.php

civicrm/CRM/Admin/Form/PaymentProcessor.php

civicrm/CRM/Admin/Form/Preferences/Address.php

civicrm/CRM/Admin/Form/Preferences/Contribute.php

civicrm/CRM/Admin/Form/ScheduleReminders.php

civicrm/CRM/Admin/Form/Setting/Miscellaneous.php

civicrm/CRM/Admin/Page/APIExplorer.php

civicrm/CRM/Admin/Page/ExtensionsUpgrade.php

civicrm/CRM/Admin/Page/Options.php

civicrm/CRM/Admin/Page/PaymentProcessor.php

civicrm/CRM/Batch/DAO/Batch.php

civicrm/CRM/Batch/DAO/EntityBatch.php