add fix from synce patches (thanks ralimi) this patch fixes RRULE BYDAY  which would be else \, escaped  in ical2vcal vcal2ical conversion. For example:       RRULE:FREQ=WEEKLY;INTERVAL=2;BYDAY=TU,WE,FR,SU (ical correct)   ical2vcal:     RRULE:W2 TU WE FR SU #0 (vcal correct)   vcal2ical:     RRULE:FREQ=WEEKLY;INTERVAL=2;BYDAY=TU\,WE\,FR\,SU (ical false)
add fix from synce patches (thanks ralimi)
this patch fixes RRULE BYDAY  which would be else \, escaped 
in ical2vcal vcal2ical conversion.
For example:
 
    RRULE:FREQ=WEEKLY;INTERVAL=2;BYDAY=TU,WE,FR,SU (ical correct)
  ical2vcal:
    RRULE:W2 TU WE FR SU #0 (vcal correct)
  vcal2ical:
    RRULE:FREQ=WEEKLY;INTERVAL=2;BYDAY=TU\,WE\,FR\,SU (ical false)


git-svn-id: e31799a7ad59d6ea355ca047c69e0aee8a59fcd3@1677 53f5c7ee-bee3-0310-bbc5-ea0e15fffd5e

ianmartin/opensync,ianmartin/opensync