Fix spurious quotes in calendar events

Newer libical versions no longer require the parameters to be quoted. This
patch removes the quoting to avoid adding unnecessary quotes to the
attendee and organizer parameters. This resolves issue #108.

Signed-off-by: pschwabauer <pschwabauer@intevation.de>
(cherry picked from commit cf6c82feb8)

libkcal/icalformatimpl.cpp

@@ -69,15 +69,6 @@ static void _dumpIcaltime( const icaltimetype& t)
 }
 */
 
-static TQString quoteForParam( const TQString &text )
-{
-  TQString tmp = text;
-  tmp.remove( '"' );
-  if ( tmp.contains( ';' ) || tmp.contains( ':' ) || tmp.contains( ',' ) )
-    return tmp; // libical quotes in this case already, see icalparameter_as_ical_string()
-  return TQString::fromLatin1( "\"" ) + tmp + TQString::fromLatin1( "\"" );
-}
-
 const int gSecondsPerMinute = 60;
 const int gSecondsPerHour   = gSecondsPerMinute * 60;
 const int gSecondsPerDay    = gSecondsPerHour   * 24;
@@ -576,7 +567,7 @@ icalproperty *ICalFormatImpl::writeOrganizer( const Person &organizer )
   icalproperty *p = icalproperty_new_organizer("MAILTO:" + organizer.email().utf8());
 
   if (!organizer.name().isEmpty()) {
-    icalproperty_add_parameter( p, icalparameter_new_cn(quoteForParam(organizer.name()).utf8()) );
+    icalproperty_add_parameter( p, icalparameter_new_cn(organizer.name().utf8()) );
   }
   // TODO: Write dir, sent-by and language
 
@@ -589,7 +580,7 @@ icalproperty *ICalFormatImpl::writeAttendee(Attendee *attendee)
   icalproperty *p = icalproperty_new_attendee("mailto:" + attendee->email().utf8());
 
   if (!attendee->name().isEmpty()) {
-    icalproperty_add_parameter(p,icalparameter_new_cn(quoteForParam(attendee->name()).utf8()));
+    icalproperty_add_parameter(p,icalparameter_new_cn(attendee->name().utf8()));
   }
 
 
@@ -869,7 +860,7 @@ icalcomponent *ICalFormatImpl::writeAlarm(Alarm *alarm)
       for (TQValueList<Person>::Iterator ad = addresses.begin();  ad != addresses.end();  ++ad) {
         icalproperty *p = icalproperty_new_attendee("MAILTO:" + (*ad).email().utf8());
         if (!(*ad).name().isEmpty()) {
-          icalproperty_add_parameter(p,icalparameter_new_cn(quoteForParam((*ad).name()).utf8()));
+          icalproperty_add_parameter(p,icalparameter_new_cn((*ad).name().utf8()));
         }
         icalcomponent_add_property(a,p);
       }