civicrm: 5.3.0 release

assets/templates/civicrm.shortcode.php

civicrm.php

civicrm/CRM/Activity/BAO/Activity.php

civicrm/CRM/Activity/BAO/Query.php

civicrm/CRM/Admin/Form/MessageTemplates.php

civicrm/CRM/Admin/Form/Options.php

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

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

civicrm/CRM/Admin/Form/RelationshipType.php

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

civicrm/CRM/Admin/Page/AJAX.php

civicrm/CRM/Admin/Page/MessageTemplates.php

civicrm/CRM/Admin/Page/Options.php

civicrm/CRM/Batch/Form/Entry.php

civicrm/CRM/Case/BAO/Case.php

civicrm/CRM/Case/XMLProcessor/Report.php

civicrm/CRM/Contact/BAO/Contact.php

civicrm/CRM/Contact/BAO/Contact/Location.php

civicrm/CRM/Contact/BAO/Group.php

civicrm/CRM/Contact/BAO/Query.php