civicdm-47: update to 4.7.18

civicrm/CRM/Activity/Form/Task/Batch.php

civicrm/CRM/Activity/Import/Parser/Activity.php

civicrm/CRM/Admin/Form/Navigation.php

civicrm/CRM/Admin/Form/PaymentProcessor.php

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

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

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

civicrm/CRM/Admin/Page/AJAX.php

civicrm/CRM/Admin/Page/Navigation.php

civicrm/CRM/Batch/BAO/Batch.php

civicrm/CRM/Batch/Form/Entry.php

civicrm/CRM/Case/BAO/Case.php

civicrm/CRM/Case/DAO/Case.php

civicrm/CRM/Contact/BAO/Contact.php

civicrm/CRM/Contact/BAO/Contact/Permission.php

civicrm/CRM/Contact/BAO/ContactType.php

civicrm/CRM/Contact/BAO/Group.php

civicrm/CRM/Contact/BAO/Query.php

civicrm/CRM/Contact/Form/DedupeRules.php

civicrm/CRM/Contact/Form/Edit/Demographics.php