convert through caldav transmitted rgba calendarcolor to rgb

apps/calendar/lib/connector_sabre.php

@@ -105,6 +105,9 @@ class OC_Connector_Sabre_CalDAV extends Sabre_CalDAV_Backend_Abstract {
 		if(!isset($newValues['timezone'])) $newValues['timezone'] = null;
 		if(!isset($newValues['calendarorder'])) $newValues['calendarorder'] = 0;
 		if(!isset($newValues['calendarcolor'])) $newValues['calendarcolor'] = null;
+		if(!is_null($newValues['calendarcolor']) && strlen($newValues['calendarcolor']) == 9){
+			$newValues['calendarcolor'] = substr($newValues['calendarcolor'], 0, 7);
+		}
 		
 		return OC_Calendar_Calendar::addCalendarFromDAVData($principalUri,$calendarUri,$newValues['displayname'],$newValues['components'],$newValues['timezone'],$newValues['calendarorder'],$newValues['calendarcolor']);
 	}
@@ -192,6 +195,9 @@ class OC_Connector_Sabre_CalDAV extends Sabre_CalDAV_Backend_Abstract {
 		if(!isset($newValues['timezone'])) $newValues['timezone'] = null;
 		if(!isset($newValues['calendarorder'])) $newValues['calendarorder'] = null;
 		if(!isset($newValues['calendarcolor'])) $newValues['calendarcolor'] = null;
+		if(!is_null($newValues['calendarcolor']) && strlen($newValues['calendarcolor']) == 9){
+			$newValues['calendarcolor'] = substr($newValues['calendarcolor'], 0, 7);
+		}
 		
 		OC_Calendar_Calendar::editCalendar($calendarId,$newValues['displayname'],null,$newValues['timezone'],$newValues['calendarorder'],$newValues['calendarcolor']);