Merge to 2.4.3

SOPE will take care of encoding all text parts in quoted-printable if necessary.

Fixes #5391
Fixes #5393

SoObjects/Appointments/SOGoAppointmentFolder.m

@@ -524,7 +524,7 @@ static Class iCalEventK = nil;
 //
 // If the user is the owner of the calendar, by default we include the freebusy information.
 //
-// If the user is NOT the owner of the calendar, by default we exclude the freebusy information.
+// If the user is NOT the owner of the calendar but is subscribed, by default we exclude the freebusy information.
 //
 // We must include the freebusy information of other users if we are actually looking at their freebusy information
 // but we aren't necessarily subscribed to their calendars.
@@ -534,7 +534,7 @@ static Class iCalEventK = nil;
   NSNumber *excludeFromFreeBusy;
   NSString *userLogin, *ownerInContext;
   BOOL is_owner;
-  
+
   userLogin = [[context activeUser] login];
   ownerInContext = [[self container] ownerInContext: context];
   is_owner = [userLogin isEqualToString: ownerInContext];