Add support for events with recurrence dates

UI/Scheduler/English.lproj/Localizable.strings

@@ -571,6 +571,7 @@ vtodo_class2 = "(Confidential task)";
 "More options" = "More options";
 "Delete This Occurrence" = "Delete This Occurrence";
 "Delete All Occurrences" = "Delete All Occurrences";
+"Add Recurrence Date" = "Add Recurrence Date";
 "Add From" = "Add From";
 "Add Due" = "Add Due";
 "Import" = "Import";

UI/Scheduler/UIxAppointmentEditor.m

@@ -1,6 +1,6 @@
 /* UIxAppointmentEditor.m - this file is part of SOGo
  *
- * Copyright (C) 2007-2016 Inverse inc.
+ * Copyright (C) 2007-2017 Inverse inc.
  *
  * This file is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -650,6 +650,7 @@
  * @apiSuccess (Success 200) {Number} [repeat.days.occurence] Occurrence of a specific day within the monthly or yearly rule (values are -5 to 5)
  * @apiSuccess (Success 200) {Number[]} [repeat.months]       List of months of the year (values are 1 to 12)
  * @apiSuccess (Success 200) {Number[]} [repeat.monthdays]    Days of the month (values are 1 to 31)
+ * @apiSuccess (Success 200) {String[]} [repeat.dates]        Recurrence dates (ISO8601)
  */
 - (id <WOActionResults>) viewAction
 {

UI/Scheduler/UIxCalMainView.m

@@ -1,6 +1,6 @@
 /* UIxCalMainView.m - this file is part of SOGo
  *
- * Copyright (C) 2006-2016 Inverse inc.
+ * Copyright (C) 2006-2017 Inverse inc.
  *
  * This file is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -476,6 +476,7 @@
                              @"weekly",
                              @"monthly",
                              @"yearly",
+                             @"custom",
                              nil];
       [repeatItems retain];
     }