Undefined end dates are described in RFC-5280
Invalid dates should never ever arise in certificates.
Add configuration option to disable the colorization of expired dates.
- Only once set notBefore to "now" when creating Cert-renewal
or NewCert dialog.
- Apply-time button now always uses the current value from notBefore
and adds the time-span without resetting notBefore
- Checking "midnight" now immediately modifies the dates.
Unchecking "midnight" now recovers the old value
- The seconds are always set to 00, since they can't be set via
the DateTime dialog anyway
- CRL generation now too allows to use midnight and time ranges
and uses GENERALIZED time if the date is out of range for UTCTIME
(same logic as for certificates)
patch from "Andreas Roth"
- Display it as QDateTimeEdit in QT Designer
- date and time format changed to "yyyy-MM-dd hh:mm"
- use UTC date and times
- enabled calendar popup
