Localized time display.

Made time localizable by making "hh:mm" string translatable.

Also, however seems a bit hacky to me, but that's a best solution that came to my mind, TimePickerDialog.hourMode is set based on localized "hh:mm" string: if it contains "ap" than it will be set to DateTime.TwelveHours mode, otherwise - to DateTime.TwentyFourHours mode.